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import os, math, cv2, random
import numpy as np
from itertools import combinations
from PIL import Image
from dataclasses import dataclass, field
from typing import List, Dict
from sklearn.linear_model import LinearRegression
from scipy.optimize import fsolve, minimize
@dataclass()
class ArmatureSkeleton:
cfg: str
Dirs: str
leaf_type: str
all_points: list
dir_temp: str
file_name: str
width: int
height: int
logger: object
is_complete: bool = False
keep_going: bool = False
do_show_QC_images: bool = False
do_save_QC_images: bool = False
classes: int = 0
points_list: int = 0
image: int = 0
ordered_middle: int = 0
midvein_fit: int = 0
midvein_fit_points: int = 0
ordered_midvein_length: float = 0.0
has_middle = False
has_outer = False
has_tip = False
is_split = False
ordered_petiole: int = 0
ordered_petiole_length: float = 0.0
has_ordered_petiole = False
has_apex: bool = False
apex_left: int = 0
apex_right: int = 0
apex_center: int = 0
apex_angle_type: str = 'NA'
apex_angle_degrees: float = 0.0
has_base: bool = False
base_left: int = 0
base_right: int = 0
base_center: int = 0
base_angle_type: str = 'NA'
base_angle_degrees: float = 0.0
has_lamina_base: bool = False
lamina_base: int = 0
has_lamina_length: bool = False
lamina_fit: int = 0
lamina_length: float = 0.0
has_width: bool = False
lamina_width: float = 0.0
width_left: float = 0.0
width_right: float = 0.0
def __init__(self, cfg, logger, Dirs, leaf_type, all_points, height, width, dir_temp, file_name) -> None:
# Store the necessary arguments as instance attributes
self.cfg = cfg
self.Dirs = Dirs
self.leaf_type = leaf_type
self.all_points = all_points
self.height = height
self.width = width
self.dir_temp = dir_temp
self.file_name = file_name
logger.name = f'[{leaf_type} - {file_name}]'
self.logger = logger
self.init_lists_dicts()
""" Setup """
self.set_cfg_values()
self.define_landmark_classes()
self.setup_QC_image()
self.setup_angle_image()
self.setup_final_image()
self.parse_all_points()
self.convert_YOLO_bbox_to_point()
if (len(self.points_list['outer']) > 6) and (len(self.points_list['middle']) > 3):
self.keep_going = True
""" Landmarks """
if self.keep_going:
# Start with ordering the midvein and petiole
self.order_middle()
# print(self.ordered_midvein)
if self.keep_going:
# Split the image using the midvein IF has_midvein == True
self.split_image_by_middle()
if self.keep_going:
self.group_outer_points()
if self.keep_going:
# Measure
self.measure_armature()
if self.keep_going:
# calc tangent angle of outer and inner polys
self.calc_angle_tangent()
if self.keep_going:
self.calc_angle_curl()
if self.keep_going:
# self.calc_angle_bend()
self.calc_curvature_radius()
if self.keep_going:
self.calc_direct_length()
# self.show_QC_image()
# self.show_angle_image()
self.is_complete = True # TODO add ways to set True
def measure_armature(self):
# wb = width_base = line between the last outer and inner points
# Define the line function
def line_func(x):
return self.wb_slope * x + self.wb_intercept
def middle_func(x):
return self.middle_poly[0]*x**2 + self.middle_poly[1]*x + self.middle_poly[2]
# Define the difference function
def line_middle_diff(x):
return line_func(x) - middle_func(x)
# Convert the points to numpy arrays
last_point_right = np.array(self.last_point_right)
last_point_left = np.array(self.last_point_left)
# Calculate the Euclidean distance between the points
self.width_base = np.linalg.norm(last_point_right - last_point_left)
print("The distance between the last points of the right and left segments is:", self.width_base)
# Intersection of the width and the middlepoly# Draw a line between the last points of the outer_left and outer_right segments
cv2.line(self.image, (int(self.last_point_left[0]), int(self.last_point_left[1])), (int(self.last_point_right[0]), int(self.last_point_right[1])), gc('white'), thickness=2)
cv2.line(self.image_angles, (int(self.last_point_left[0]), int(self.last_point_left[1])), (int(self.last_point_right[0]), int(self.last_point_right[1])), color=gc('white'), thickness=2)
# Calculate the slope and y-intercept of the line
self.wb_slope = (self.last_point_right[1] - self.last_point_left[1]) / (self.last_point_right[0] - self.last_point_left[0])
self.wb_intercept = self.last_point_left[1] - self.wb_slope * self.last_point_left[0]
# Find the intersection point
intersection_x = fsolve(line_middle_diff, 0)[0]
intersection_y = line_func(intersection_x)
self.width_base_inter = [(int(intersection_x), int(intersection_y))]
# Calculate the midpoint between the last points
self.width_base_mid = (last_point_right + last_point_left) / 2
cv2.circle(self.image, (int(intersection_x), int(intersection_y)), radius=2, color=gc('green'), thickness=-1)
cv2.circle(self.image, (int(intersection_x), int(intersection_y)), radius=4, color=gc('black'), thickness=2)
cv2.circle(self.image, (int(self.width_base_mid[0]), int(self.width_base_mid[1])), radius=2, color=gc('red'), thickness=-1)
cv2.circle(self.image, (int(self.width_base_mid[0]), int(self.width_base_mid[1])), radius=4, color=gc('black'), thickness=2)
print("The intersection point of the line and the middle polynomial is:", (intersection_x, intersection_y))
def calc_direct_length(self):
# Calculate the x-coordinate of the intersection point
x_intersection = (self.wb_intercept_perpendicular - self.wb_intercept) / (self.wb_slope - self.wb_slope_perpendicular)
# Calculate the y-coordinate of the intersection point
y_intersection = self.wb_slope * x_intersection + self.wb_intercept
# Store the intersection point as self.wb_origin
self.wb_origin = np.array([x_intersection, y_intersection])
# Calculate the distance between the intersection point and self.inter_point
self.length_direct = np.linalg.norm(self.wb_origin - self.inter_point)
# Plot a 2-pixel thick red line from self.wb_origin to self.inter_point
cv2.line(self.image_angles, tuple(map(int, self.wb_origin)), tuple(map(int, self.inter_point)), gc('red'), thickness=2)
def calc_curvature_radius(self):
def fit_circle_least_squares(points):
if len(points) <= 1:
return 0.0, (0, 0)
def calc_residuals(params, points):
x0, y0, r = params
residuals = np.sqrt((points[:, 0] - x0) ** 2 + (points[:, 1] - y0) ** 2) - r
return residuals
def objective(params, points):
return np.sum(calc_residuals(params, points) ** 2)
x_mean = np.mean(points[:, 0])
y_mean = np.mean(points[:, 1])
r_mean = np.mean(np.sqrt((points[:, 0] - x_mean) ** 2 + (points[:, 1] - y_mean) ** 2))
init_params = [x_mean, y_mean, r_mean]
result = minimize(objective, init_params, args=(points,), method='L-BFGS-B')
x0, y0, r = result.x
return r, (x0, y0)
self.radius_middle, center_middle = fit_circle_least_squares(self.ordered_middle_np)
self.radius_outer_left, center_outer_left = fit_circle_least_squares(self.ordered_outer_left_np)
self.radius_outer_right, center_outer_right = fit_circle_least_squares(self.ordered_outer_right_np)
# Plot the circles on self.image_angles
cv2.circle(self.image_angles, (int(center_middle[0]), int(center_middle[1])), int(self.radius_middle), gc('yellow'), thickness=1)
cv2.circle(self.image_angles, (int(center_outer_left[0]), int(center_outer_left[1])), int(self.radius_outer_left), gc('pink'), thickness=1)
cv2.circle(self.image_angles, (int(center_outer_right[0]), int(center_outer_right[1])), int(self.radius_outer_right), gc('cyan'), thickness=1)
print('hi')
def calc_angle_bend(self):
print('hi')
def calc_angle_curl(self):
# Define the perpendicular line function
def wb_line_perpendicular(x):
return self.wb_slope_perpendicular * x + self.wb_intercept_perpendicular
# Calculate the slope of the line perpendicular to the given line
self.wb_slope_perpendicular = -1 / self.wb_slope
# Calculate the y-intercept of the line perpendicular to the given line
self.wb_intercept_perpendicular = self.inter_point[1] - self.wb_slope_perpendicular * self.inter_point[0]
# Line fit to first 3 points in self.ordered_middle
self.middle_tip_poly = np.polyfit(self.ordered_middle_np[0:3, 0], self.ordered_middle_np[0:3, 1], 1)
middle_tip_slope = self.middle_tip_poly[0]
# angle between middle_tip fit the curl perpendicular
theta = math.atan(abs((middle_tip_slope - self.wb_slope_perpendicular) / (1 + self.wb_slope_perpendicular*middle_tip_slope)))
# Convert the angle to degrees
self.angle_curl = math.degrees(theta)
print("The angle between the lines is:", self.angle_curl, "degrees")
# Draw the tangents at the intersection point
intersection_point = np.array(self.inter_point_outer_inner, dtype=int)
length = 50 # Length of the tangent lines
# Calculate the points for the tangent lines
curl_tangent_point1 = (intersection_point[0] - length, intersection_point[1] - length * self.wb_slope_perpendicular)
curl_tangent_point2 = (intersection_point[0] + length, intersection_point[1] + length * self.wb_slope_perpendicular)
middle_tip_tangent_point1 = (intersection_point[0] - length, intersection_point[1] - length * middle_tip_slope)
middle_tip_tangent_point2 = (intersection_point[0] + length, intersection_point[1] + length * middle_tip_slope)
# Convert the points to integers
curl_tangent_point1 = tuple(map(int, curl_tangent_point1))
curl_tangent_point2 = tuple(map(int, curl_tangent_point2))
middle_tip_tangent_point1 = tuple(map(int, middle_tip_tangent_point1))
middle_tip_tangent_point2 = tuple(map(int, middle_tip_tangent_point2))
# Draw the tangent lines
cv2.line(self.image_angles, intersection_point, curl_tangent_point1, gc('teal'), 1)
cv2.line(self.image_angles, intersection_point, curl_tangent_point2, gc('teal'), 1)
cv2.line(self.image_angles, intersection_point, middle_tip_tangent_point1, gc('teal'), 1)
cv2.line(self.image_angles, intersection_point, middle_tip_tangent_point2, gc('teal'), 1)
# Draw the arc representing the angle
cv2.ellipse(self.image_angles, tuple(intersection_point), (length, length), 0, 0, self.angle_curl, gc('teal'), 2)
cv2.ellipse(self.image_angles, tuple(intersection_point), (length, length), 180, 0, self.angle_curl, gc('teal'), 2)
### plot the wb_line_perpendicular
# Calculate the y values for the start and end points of the line
y_start = max(0, int(wb_line_perpendicular(0)))
y_end = min(self.height, int(wb_line_perpendicular(self.width)))
# Define the range of y values for the line
y_range = np.linspace(y_start, y_end, num=100, dtype=int) # You can adjust 'num' to control the number of points
# Draw the dotted gray line
for i in range(len(y_range) - 1):
y1, x1 = y_range[i], int((y_range[i] - self.wb_intercept_perpendicular) / self.wb_slope_perpendicular)
x1 = max(0, min(x1, self.width)) # Keep x1 within the bounds of the image width
y2, x2 = y_range[i+1], int((y_range[i+1] - self.wb_intercept_perpendicular) / self.wb_slope_perpendicular)
x2 = max(0, min(x2, self.width)) # Keep x2 within the bounds of the image width
if i % 2 == 0: # Change the value of 2 to adjust the spacing between the dots
cv2.line(self.image_angles, (x1, y1), (x2, y2), gc('white'), 1)
def calc_angle_tangent(self):
# Define the polynomial functions
def left_func(x):
return self.left_poly[0]*x**2 + self.left_poly[1]*x + self.left_poly[2]
def right_func(x):
return self.right_poly[0]*x**2 + self.right_poly[1]*x + self.right_poly[2]
# Define the difference function
def left_right_diff(x):
return left_func(x) - right_func(x)
# Find the x-coordinate of the intersection point
intersection_x = fsolve(left_right_diff, 0)[0]
# Calculate the y-coordinate of the intersection point on the left and right curves
intersection_y_left = left_func(intersection_x)
intersection_y_right = right_func(intersection_x)
# Calculate the derivatives of the polynomials at the intersection point
left_derivative = 2*self.left_poly[0]*intersection_x + self.left_poly[1]
right_derivative = 2*self.right_poly[0]*intersection_x + self.right_poly[1]
# Calculate the angle between the tangents to the polynomials at the intersection point
theta = math.atan(abs((right_derivative - left_derivative) / (1 + left_derivative*right_derivative)))
# Convert the angle to degrees
self.angle_tangent = math.degrees(theta)
print("The angle between the left and right polynomials at their point of intersection is:", theta, "degrees")
# Draw the tangents at the intersection point
intersection_point = np.array([int(intersection_x), int(intersection_y_left + (intersection_y_right - intersection_y_left)/2)])
length = 30 # Length of the tangent lines
# Calculate the points for the tangent lines
left_tangent_point1 = (intersection_point[0] - length, intersection_point[1] - length * left_derivative)
left_tangent_point2 = (intersection_point[0] + length, intersection_point[1] + length * left_derivative)
right_tangent_point1 = (intersection_point[0] - length, intersection_point[1] - length * right_derivative)
right_tangent_point2 = (intersection_point[0] + length, intersection_point[1] + length * right_derivative)
# Convert the points to integers
left_tangent_point1 = tuple(map(int, left_tangent_point1))
left_tangent_point2 = tuple(map(int, left_tangent_point2))
right_tangent_point1 = tuple(map(int, right_tangent_point1))
right_tangent_point2 = tuple(map(int, right_tangent_point2))
# # Draw the tangent lines
# cv2.line(self.image_angles, intersection_point, left_tangent_point1, gc('yellow'), 1)
# cv2.line(self.image_angles, intersection_point, left_tangent_point2, gc('yellow'), 1)
# cv2.line(self.image_angles, intersection_point, right_tangent_point1, gc('yellow'), 1)
# cv2.line(self.image_angles, intersection_point, right_tangent_point2, gc('yellow'), 1)
# Draw the arc representing the angle
cv2.ellipse(self.image_angles, tuple(intersection_point), (length, length), 0, 0, self.angle_tangent, gc('yellow'), 2)
cv2.ellipse(self.image_angles, tuple(intersection_point), (length, length), 180, 0, self.angle_tangent, gc('yellow'), 2)
# self.show_angle_image()
# return theta
def group_outer_points(self):
# Split the points into two groups based on their position relative to the line
self.outer_left = []
self.outer_right = []
# if 'tip' in self.points_list:
for point in self.points_list['outer']:
x, y = point
predicted_y = self.predict_y(x)
if y > predicted_y:
self.outer_right.append(point)
else:
self.outer_left.append(point)
self.outer_right = np.array(self.outer_right)
self.outer_left = np.array(self.outer_left)
if (len(self.outer_right) < 3) or (len(self.outer_left) < 3):
self.keep_going = False
else:
# Plot `outer_left` points in pink
for point in self.outer_left:
x, y = point
cv2.circle(self.image, (x, y), radius=5, color=gc('pink'), thickness=-1)
# Plot `outer_right` points in cyan
for point in self.outer_right:
x, y = point
cv2.circle(self.image, (x, y), radius=5, color=gc('cyan'), thickness=-1)
### outer_left
self.outer_left = self.order_points(self.outer_left)
self.outer_left = self.remove_duplicate_points(self.outer_left)
# self.outer_left = self.check_momentum(self.outer_left, False)
self.order_points_plot(self.outer_left, 'outer_left', 'final')
self.order_points_plot(self.outer_left, 'outer_left', 'QC')
self.outer_left_length, self.outer_left = self.get_length_of_ordered_points(self.outer_left, 'outer_left')
self.has_outer_left = True
### outer_right
self.outer_right = self.order_points(self.outer_right)
self.outer_right = self.remove_duplicate_points(self.outer_right)
# self.outer_right = self.check_momentum(self.outer_right, False)
self.order_points_plot(self.outer_right, 'outer_right', 'final')
self.order_points_plot(self.outer_right, 'outer_right', 'QC')
self.outer_right_length, self.outer_right = self.get_length_of_ordered_points(self.outer_right, 'outer_right')
self.has_middle = True
print(f"Length outer_left - {self.outer_left_length}")
print(f"Length outer_right - {self.outer_right_length}")
self.outer_right_np = np.array(self.outer_right)
self.outer_left_np = np.array(self.outer_left)
self.ordered_middle_np = np.array(self.ordered_middle)
# Fit 2nd order polynomials to the line segments
self.left_poly = np.polyfit(self.outer_left_np[:, 0], self.outer_left_np[:, 1], 2)
self.right_poly = np.polyfit(self.outer_right_np[:, 0], self.outer_right_np[:, 1], 2)
self.middle_poly = np.polyfit(self.ordered_middle_np[:, 0], self.ordered_middle_np[:, 1], 2)
# Evaluate polynomial coefficients for a range of x values
x_range = np.linspace(0, self.width, num=100)
left_line = np.polyval(self.left_poly, x_range)
right_line = np.polyval(self.right_poly, x_range)
self.middle_line = np.polyval(self.middle_poly, x_range)
# Plot lines of fit as white lines
for i in range(len(x_range)-1):
cv2.line(self.image, (int(x_range[i]), int(left_line[i])), (int(x_range[i+1]), int(left_line[i+1])), color=gc('gray'), thickness=1)
cv2.line(self.image, (int(x_range[i]), int(right_line[i])), (int(x_range[i+1]), int(right_line[i+1])), color=gc('white'), thickness=1)
cv2.line(self.image, (int(x_range[i]), int(self.middle_line[i])), (int(x_range[i+1]), int(self.middle_line[i+1])), color=gc('white'), thickness=2)
# Define the polynomial functions
def left_func(x):
return self.left_poly[0]*x**2 + self.left_poly[1]*x + self.left_poly[2]
def right_func(x):
return self.right_poly[0]*x**2 + self.right_poly[1]*x + self.right_poly[2]
def middle_func(x):
return self.middle_poly[0]*x**2 + self.middle_poly[1]*x + self.middle_poly[2]
# Define the difference functions
def left_middle_diff(x):
return left_func(x) - middle_func(x)
def right_middle_diff(x):
return right_func(x) - middle_func(x)
def left_right_diff(x):
return left_func(x) - right_func(x)
# Find the intersection points
left_middle_intersection_x = fsolve(left_middle_diff, 0)
right_middle_intersection_x = fsolve(right_middle_diff, 0)
left_right_intersection_x = fsolve(left_right_diff, 0)
left_middle_intersection_y = left_func(left_middle_intersection_x)[0]
right_middle_intersection_y = right_func(right_middle_intersection_x)[0]
left_right_intersection_y = left_func(left_right_intersection_x)[0]
# Keep only points within the image boundaries
intersection_points = np.array([[left_middle_intersection_x, left_middle_intersection_y], [right_middle_intersection_x, right_middle_intersection_y], [left_right_intersection_x, left_right_intersection_y]])
intersection_points = intersection_points[(intersection_points[:, 0] >= 0) & (intersection_points[:, 0] <= self.width) & (intersection_points[:, 1] >= 0) & (intersection_points[:, 1] <= self.height)]
if intersection_points.size == 0:
self.keep_going = False
else:
# Compute the average of the intersection points
intersection_x = np.mean(intersection_points[:, 0])
intersection_y = np.mean(intersection_points[:, 1])
self.inter_point = [int(intersection_x), int(intersection_y)]
self.inter_point_outer_inner = [int(left_right_intersection_x), int(left_right_intersection_y)]
# Draw intersection point on the image
cv2.circle(self.image, (int(intersection_x), int(intersection_y)), radius=5, color=gc('green'), thickness=-1)
print(f"Length outer_left - {self.outer_left_length}")
print(f"Length outer_right - {self.outer_right_length}")
print(f"Intersection point - ({int(intersection_x)}, {int(intersection_y)})")
# Make the first points be at the tip, last points far away at base
def reorder_segment(segment, inter):
# Convert to numpy arrays for easier manipulation
segment = np.array(segment)
inter = np.array(inter)
# Calculate the Euclidean distance from the INTER point to the first and last points in the segment
dist_first = np.linalg.norm(segment[0] - inter)
dist_last = np.linalg.norm(segment[-1] - inter)
# If the last point is closer to the INTER point than the first point, reverse the order of the segment
if dist_last < dist_first:
segment = segment[::-1]
return segment.tolist()
self.ordered_middle = reorder_segment(self.ordered_middle, self.inter_point)
self.outer_left = reorder_segment(self.outer_left, self.inter_point)
self.outer_right = reorder_segment(self.outer_right, self.inter_point)
self.ordered_outer_right_np = np.array(self.outer_right)
self.ordered_outer_left_np = np.array(self.outer_left)
self.ordered_middle_np = np.array(self.ordered_middle)
# Draw a black ring around the last point of the outer_left segment
self.last_point_left = self.outer_left[-1]
cv2.circle(self.image, (int(self.last_point_left[0]), int(self.last_point_left[1])), radius=4, color=gc('black'), thickness=2)
cv2.circle(self.image, (int(self.last_point_left[0]), int(self.last_point_left[1])), radius=6, color=gc('white'), thickness=2)
# Draw a black ring around the last point of the outer_right segment
self.last_point_right = self.outer_right[-1]
cv2.circle(self.image, (int(self.last_point_right[0]), int(self.last_point_right[1])), radius=4, color=gc('black'), thickness=2)
cv2.circle(self.image, (int(self.last_point_right[0]), int(self.last_point_right[1])), radius=6, color=gc('white'), thickness=2)
# self.show_QC_image()
# print('hi')
def split_image_by_middle(self):
if not self.has_middle:
self.keep_going = False
else:
n_fit = 2
# Convert the points to a numpy array
points_arr = np.array(self.ordered_middle)
# Fit a line to the points
self.midvein_fit = np.polyfit(points_arr[:, 0], points_arr[:, 1], n_fit)
# Plot a sample of points from along the line
max_dim = max(self.height, self.width)
if max_dim < 400:
num_points = 40
elif max_dim < 1000:
num_points = 80
else:
num_points = 120
# Get the endpoints of the line segment that lies within the bounds of the image
x1 = 0
y1 = int(self.midvein_fit[0] * x1**2 + self.midvein_fit[1] * x1 + self.midvein_fit[2])
x2 = self.width - 1
y2 = int(self.midvein_fit[0] * x2**2 + self.midvein_fit[1] * x2 + self.midvein_fit[2])
denom = self.midvein_fit[0]
if denom == 0:
denom = 0.0000000001
if y1 < 0:
y1 = 0
x1 = int((y1 - self.midvein_fit[1]) / denom)
if y2 >= self.height:
y2 = self.height - 1
x2 = int((y2 - self.midvein_fit[1]) / denom)
# Sample num_points points along the line segment within the bounds of the image
x_vals = np.linspace(x1, x2, num_points)
y_vals = self.midvein_fit[0] * x_vals**2 + self.midvein_fit[1] * x_vals + self.midvein_fit[2]
# Remove any points that are outside the bounds of the image
indices = np.where((y_vals >= 0) & (y_vals < self.height))[0]
x_vals = x_vals[indices]
y_vals = y_vals[indices]
# Recompute y-values using the line equation and updated x-values
y_vals = self.midvein_fit[0] * x_vals + self.midvein_fit[1]
self.midvein_fit_points = np.column_stack((x_vals, y_vals))
self.is_split = True
# Draw line of fit
# for point in self.midvein_fit_points:
# cv2.circle(self.image, tuple(point.astype(int)), radius=1, color=(255, 255, 255), thickness=-1)
def predict_y(self, x):
return self.midvein_fit[0] * x**2 + self.midvein_fit[1] * x + self.midvein_fit[2]
def order_middle(self):
if 'middle' not in self.points_list:
self.keep_going = False
else:
if len(self.points_list['middle']) >= 5:
self.logger.debug(f"Ordered Middle - Raw list contains {len(self.points_list['middle'])} points - using momentum")
self.ordered_middle = self.order_points(self.points_list['middle'])
self.ordered_middle = self.remove_duplicate_points(self.ordered_middle)
self.ordered_middle = self.check_momentum(self.ordered_middle, False)
self.v_tip = self.find_v_tip(self.points_list['outer'])
# self.ordered_middle.append(self.v_tip)
self.order_points_plot(self.ordered_middle, 'middle', 'QC')
self.ordered_middle_length, self.ordered_middle = self.get_length_of_ordered_points(self.ordered_middle, 'middle')
self.has_middle = True
else:
self.keep_going = False
self.logger.debug(f"Ordered Middle - Raw list contains {len(self.points_list['middle'])} points - SKIPPING MIDDLE")
def v_shape_template(self, tip, scale):
return np.array([
[tip[0] - scale, tip[1] + scale],
tip,
[tip[0] + scale, tip[1] + scale]
])
def error_function(self, params, points):
tip = params[:2]
scale = params[2]
template_points = self.v_shape_template(tip, scale)
error = 0
for p in points:
dist = np.min(np.linalg.norm(template_points - p, axis=1))
error += dist
return error
def find_v_tip(self, points):
points = np.array(points)
initial_guess = np.mean(points, axis=0)
initial_scale = np.linalg.norm(np.max(points, axis=0) - np.min(points, axis=0)) / 2
result = minimize(
self.error_function,
np.hstack([initial_guess, initial_scale]),
args=(points,),
method='Nelder-Mead'
)
tip = result.x[:2]
return tuple(map(int, tip))
def show_QC_image(self):
if self.do_show_QC_images:
cv2.imshow('QC image', self.image)
cv2.waitKey(0)
def show_angle_image(self):
if self.do_show_QC_images:
cv2.imshow('Angles image', self.image_angles)
cv2.waitKey(0)
def show_final_image(self):
if self.do_show_final_images:
cv2.imshow('Final image', self.image_final)
cv2.waitKey(0)
def get_length_of_ordered_points(self, points, name):
# if self.file_name == 'B_774373631_Ebenaceae_Diospyros_buxifolia__L__438-687-578-774':
# print('hi')
total_length = 0
total_length_first_pass = 0
for i in range(len(points) - 1):
x1, y1 = points[i]
x2, y2 = points[i+1]
segment_length = math.sqrt((x2-x1)**2 + (y2-y1)**2)
total_length_first_pass += segment_length
cutoff = total_length_first_pass / 2
# print(f'Total length of {name}: {total_length_first_pass}')
# print(f'points length {len(points)}')
self.logger.debug(f"Total length of {name}: {total_length_first_pass}")
self.logger.debug(f"Points length {len(points)}")
# If there are more than 2 points, this will exclude extreme outliers, or
# misordered points that don't belong
if len(points) > 2:
pop_ind = []
for i in range(len(points) - 1):
x1, y1 = points[i]
x2, y2 = points[i+1]
segment_length = math.sqrt((x2-x1)**2 + (y2-y1)**2)
if segment_length < cutoff:
total_length += segment_length
else:
pop_ind.append(i)
for exclude in pop_ind:
points.pop(exclude)
# print(f'Total length of {name}: {total_length}')
# print(f'Excluded {len(pop_ind)} points')
# print(f'points length {len(points)}')
self.logger.debug(f"Total length of {name}: {total_length}")
self.logger.debug(f"Excluded {len(pop_ind)} points")
self.logger.debug(f"Points length {len(points)}")
else:
total_length = total_length_first_pass
return total_length, points
def order_points_plot(self, points, version, QC_or_final):
# thk_base = 0
thk_base = 16
if version == 'middle':
# color = (0, 255, 0)
color = gc('green') # blue
thick = 1 #2 + thk_base
elif version == 'tip':
color = gc('green')
thick = 1 #2 + thk_base
elif version == 'outer':
color = gc('red')
thick = 1 #2 + thk_base
elif version == 'outer_left':
color = gc('pink')
thick = 1 #2 + thk_base
elif version == 'outer_right':
color = gc('cyan')
thick = 1 #2 + thk_base
# elif version == 'lamina_width_alt':
# color = (100, 100, 255)
# thick = 2 + thk_base
# elif version == 'not_reflex':
# color = (200, 0, 123)
# thick = 3 + thk_base
# elif version == 'reflex':
# color = (0, 120, 200)
# thick = 3 + thk_base
# elif version == 'petiole_tip_alt':
# color = (255, 55, 100)
# thick = 1 + thk_base
# elif version == 'petiole_tip':
# color = (100, 255, 55)
# thick = 1 + thk_base
# elif version == 'failed_angle':
# color = (0, 0, 0)
# thick = 3 + thk_base
# Convert the points to a numpy array and round to integer values
points_arr = np.round(np.array(points)).astype(int)
# Draw a green line connecting all of the points
if QC_or_final == 'QC':
for i in range(len(points_arr) - 1):
cv2.line(self.image, tuple(points_arr[i]), tuple(points_arr[i+1]), color, thick)
else:
for i in range(len(points_arr) - 1):
cv2.line(self.image_final, tuple(points_arr[i]), tuple(points_arr[i+1]), color, thick)
def check_momentum(self, coords, info):
original_coords = coords
# find middle index of coordinates
mid_idx = len(coords) // 2
# set up variables for running average
running_avg = np.array(coords[mid_idx-1])
avg_count = 1
# iterate over coordinates to check momentum change
prev_vec = np.array(coords[mid_idx-1]) - np.array(coords[mid_idx-2])
cur_idx = mid_idx - 1
while cur_idx >= 0:
cur_vec = np.array(coords[cur_idx]) - np.array(coords[cur_idx-1])
# add current point to running average
running_avg = (running_avg * avg_count + np.array(coords[cur_idx])) / (avg_count + 1)
avg_count += 1
# check for momentum change
if self.check_momentum_change(prev_vec, cur_vec):
break
prev_vec = cur_vec
cur_idx -= 1
# use running average to check for momentum change
cur_vec = np.array(coords[cur_idx]) - running_avg
if self.check_momentum_change(prev_vec, cur_vec):
cur_idx += 1
prev_vec = np.array(coords[mid_idx+1]) - np.array(coords[mid_idx])
cur_idx2 = mid_idx + 1
while cur_idx2 < len(coords):
# check if current index is out of range
if cur_idx2 >= len(coords):
break
cur_vec = np.array(coords[cur_idx2]) - np.array(coords[cur_idx2-1])
# add current point to running average
running_avg = (running_avg * avg_count + np.array(coords[cur_idx2])) / (avg_count + 1)
avg_count += 1
# check for momentum change
if self.check_momentum_change(prev_vec, cur_vec):
break
prev_vec = cur_vec
cur_idx2 += 1
# use running average to check for momentum change
if cur_idx2 < len(coords):
cur_vec = np.array(coords[cur_idx2]) - running_avg
if self.check_momentum_change(prev_vec, cur_vec):
cur_idx2 -= 1
# remove problematic points and subsequent points from list of coordinates
new_coords = coords[:cur_idx2] + coords[mid_idx:cur_idx2:-1]
if info:
return new_coords, len(original_coords) != len(new_coords)
else:
return new_coords
# define function to check for momentum change
def check_momentum_change(self, prev_vec, cur_vec):
dot_product = np.dot(prev_vec, cur_vec)
prev_norm = np.linalg.norm(prev_vec)
cur_norm = np.linalg.norm(cur_vec)
denom = (prev_norm * cur_norm)
if denom == 0:
denom = 0.0000000001
cos_theta = dot_product / denom
theta = np.arccos(cos_theta)
return abs(theta) > np.pi / 2
def remove_duplicate_points(self, points):
unique_set = set()
new_list = []
for item in points:
if item not in unique_set:
unique_set.add(item)
new_list.append(item)
return new_list
def distance(self, point1, point2):
x1, y1 = point1
x2, y2 = point2
return math.sqrt((x2 - x1) ** 2 + (y2 - y1) ** 2)
### Shortest distance
def order_points(self, points):
points = [tuple(point) for point in points] # Convert numpy.ndarray points to tuples
best_tour = None
shortest_tour_length = float('inf')
for start_point in points:
tour = [start_point]
unvisited = set(points) - {start_point}
while unvisited:
nearest = min(unvisited, key=lambda point: self.distance(tour[-1], point))
tour.append(nearest)
unvisited.remove(nearest)
# Calculate the length of the current tour
tour_length = sum(self.distance(tour[i - 1], tour[i]) for i in range(1, len(tour)))
# Update the best_tour if the current tour is shorter
if tour_length < shortest_tour_length:
shortest_tour_length = tour_length
best_tour = tour
return best_tour
### Smoothest
'''
def angle_between_points(self, p1, p2, p3):
v1 = np.array([p1[0] - p2[0], p1[1] - p2[1]])
v2 = np.array([p3[0] - p2[0], p3[1] - p2[1]])
angle = np.arccos(np.dot(v1, v2) / (np.linalg.norm(v1) * np.linalg.norm(v2)))
return angle
def order_points(self, points):
points = [tuple(point) for point in points] # Convert numpy.ndarray points to tuples
best_tour = None
largest_sum_angles = 0
for start_point in points:
tour = [start_point]
unvisited = set(points) - {start_point}
while unvisited:
nearest = min(unvisited, key=lambda point: self.distance(tour[-1], point))
tour.append(nearest)
unvisited.remove(nearest)
# Calculate the sum of angles for the current tour
sum_angles = sum(self.angle_between_points(tour[i - 1], tour[i], tour[i + 1]) for i in range(1, len(tour) - 1))
# Update the best_tour if the current tour has a larger sum of angles
if sum_angles > largest_sum_angles:
largest_sum_angles = sum_angles
best_tour = tour
return best_tour
'''
### ^^^ Smoothest
def convert_YOLO_bbox_to_point(self):
for point_type, bbox in self.points_list.items():
xy_points = []
for point in bbox:
x = point[0]
y = point[1]
w = point[2]
h = point[3]
x1 = int((x - w/2) * self.width)
y1 = int((y - h/2) * self.height)
x2 = int((x + w/2) * self.width)
y2 = int((y + h/2) * self.height)
xy_points.append((int((x1+x2)/2), int((y1+y2)/2)))
self.points_list[point_type] = xy_points
def parse_all_points(self):
points_list = {}
for sublist in self.all_points:
key = sublist[0]
value = sublist[1:]
key = self.swap_number_for_string(key)
if key not in points_list:
points_list[key] = []
points_list[key].append(value)
# print(points_list)
self.points_list = points_list
def swap_number_for_string(self, key):
for k, v in self.classes.items():
if v == key:
return k
return key
def setup_final_image(self):
self.image_final = cv2.imread(os.path.join(self.dir_temp, '.'.join([self.file_name, 'jpg'])))
if self.leaf_type == 'Landmarks_Armature':
self.path_image_final = os.path.join(self.Dirs.landmarks_armature_overlay_final, '.'.join([self.file_name, 'jpg']))
def setup_QC_image(self):
self.image = cv2.imread(os.path.join(self.dir_temp, '.'.join([self.file_name, 'jpg'])))
if self.leaf_type == 'Landmarks_Armature':
self.path_QC_image = os.path.join(self.Dirs.landmarks_armature_overlay_QC, '.'.join([self.file_name, 'jpg']))
def setup_angle_image(self):
self.image_angles = cv2.imread(os.path.join(self.dir_temp, '.'.join([self.file_name, 'jpg'])))
if self.leaf_type == 'Landmarks_Armature':
self.path_angles_image = os.path.join(self.Dirs.landmarks_armature_overlay_angles, '.'.join([self.file_name, 'jpg']))
def define_landmark_classes(self):
self.classes = {
'tip': 0,
'middle': 1,
'outer': 2,
}
def set_cfg_values(self):
self.do_show_QC_images = self.cfg['leafmachine']['landmark_detector_armature']['do_show_QC_images']
self.do_save_QC_images = self.cfg['leafmachine']['landmark_detector_armature']['do_save_QC_images']
self.do_show_final_images = self.cfg['leafmachine']['landmark_detector_armature']['do_show_final_images']
self.do_save_final_images = self.cfg['leafmachine']['landmark_detector_armature']['do_save_final_images']
def init_lists_dicts(self):
# Initialize all lists and dictionaries
self.classes = {}
self.points_list = []
self.image = []
self.ordered_middle = []
self.midvein_fit = []
self.midvein_fit_points = []
self.outer_right = []
self.outer_left = []
# self.ordered_outer_left = []
# self.ordered_outer_right = []
self.tip = []
self.apex_left = []
self.apex_right = []
self.apex_center = []
self.base_left = []
self.base_right = []
self.base_center = []
self.lamina_base = []
self.width_left = []
self.width_right = []
def get_final(self):
self.image_final = np.hstack((self.image, self.image_angles))
return self.image_final
def euclidean_distance(p1, p2):
return math.sqrt((p1[0] - p2[0])**2 + (p1[1] - p2[1])**2)
def gc(color):
colors = {
'red': (0, 0, 255),
'green': (0, 255, 0),
'blue': (255, 0, 0),
'yellow': (0, 255, 255),
'pink': (255, 0, 255),
'cyan': (255, 255, 0),
'black': (0, 0, 0),
'white': (255, 255, 255),
'gray': (128, 128, 128),
'orange': (0, 165, 255),
'purple': (128, 0, 128),
'lightpink': (203, 192, 255),
'brown': (42, 42, 165),
'navy': (128, 0, 0),
'teal': (128, 128, 0),
}
return colors.get(color.lower(), (0, 0, 0))