File size: 4,491 Bytes
8f5cd7f
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
from PIL import Image
import numpy as np
import torch
from torchvision import transforms, models
from onnx import numpy_helper
import os
import onnxruntime as rt
from matplotlib.colors import hsv_to_rgb
import cv2
import gradio as gr

import matplotlib.pyplot as plt
import matplotlib.patches as patches

import pycocotools.mask as mask_util

def preprocess(image):
    # Resize
    ratio = 800.0 / min(image.size[0], image.size[1])
    image = image.resize((int(ratio * image.size[0]), int(ratio * image.size[1])), Image.BILINEAR)

    # Convert to BGR
    image = np.array(image)[:, :, [2, 1, 0]].astype('float32')

    # HWC -> CHW
    image = np.transpose(image, [2, 0, 1])

    # Normalize
    mean_vec = np.array([102.9801, 115.9465, 122.7717])
    for i in range(image.shape[0]):
        image[i, :, :] = image[i, :, :] - mean_vec[i]

    # Pad to be divisible of 32
    import math
    padded_h = int(math.ceil(image.shape[1] / 32) * 32)
    padded_w = int(math.ceil(image.shape[2] / 32) * 32)

    padded_image = np.zeros((3, padded_h, padded_w), dtype=np.float32)
    padded_image[:, :image.shape[1], :image.shape[2]] = image
    image = padded_image

    return image



# Start from ORT 1.10, ORT requires explicitly setting the providers parameter if you want to use execution providers
# other than the default CPU provider (as opposed to the previous behavior of providers getting set/registered by default
# based on the build flags) when instantiating InferenceSession.
# For example, if NVIDIA GPU is available and ORT Python package is built with CUDA, then call API as following:
# onnxruntime.InferenceSession(path/to/model, providers=['CUDAExecutionProvider'])
os.system("wget https://github.com/AK391/models/raw/main/vision/object_detection_segmentation/mask-rcnn/model/MaskRCNN-10.onnx")
sess = rt.InferenceSession("MaskRCNN-10.onnx")

outputs = sess.get_outputs()


classes = [line.rstrip('\n') for line in open('coco_classes.txt')]


def display_objdetect_image(image, boxes, labels, scores, masks, score_threshold=0.7):
    # Resize boxes
    ratio = 800.0 / min(image.size[0], image.size[1])
    boxes /= ratio

    _, ax = plt.subplots(1, figsize=(12,9))

    image = np.array(image)

    for mask, box, label, score in zip(masks, boxes, labels, scores):
        # Showing boxes with score > 0.7
        if score <= score_threshold:
            continue

        # Finding contour based on mask
        mask = mask[0, :, :, None]
        int_box = [int(i) for i in box]
        mask = cv2.resize(mask, (int_box[2]-int_box[0]+1, int_box[3]-int_box[1]+1))
        mask = mask > 0.5
        im_mask = np.zeros((image.shape[0], image.shape[1]), dtype=np.uint8)
        x_0 = max(int_box[0], 0)
        x_1 = min(int_box[2] + 1, image.shape[1])
        y_0 = max(int_box[1], 0)
        y_1 = min(int_box[3] + 1, image.shape[0])
        mask_y_0 = max(y_0 - box[1], 0)
        mask_y_1 = mask_y_0 + y_1 - y_0
        mask_x_0 = max(x_0 - box[0], 0)
        mask_x_1 = mask_x_0 + x_1 - x_0
        im_mask[y_0:y_1, x_0:x_1] = mask[
            mask_y_0 : mask_y_1, mask_x_0 : mask_x_1
        ]
        im_mask = im_mask[:, :, None]

        # OpenCV version 4.x
        contours, hierarchy = cv2.findContours(
            im_mask, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE
        )

        image = cv2.drawContours(image, contours, -1, 25, 3)

        rect = patches.Rectangle((box[0], box[1]), box[2] - box[0], box[3] - box[1], linewidth=1, edgecolor='b', facecolor='none')
        ax.annotate(classes[label] + ':' + str(np.round(score, 2)), (box[0], box[1]), color='w', fontsize=12)
        ax.add_patch(rect)

    ax.imshow(image)
    plt.axis('off')
    plt.savefig('out.png', bbox_inches='tight')


def inference(img):
  input_image = Image.open(img)
  orig_tensor = np.asarray(input_image)
  input_tensor = preprocess(input_image)
  
  output_names = list(map(lambda output: output.name, outputs))
  input_name = sess.get_inputs()[0].name
  
  boxes, labels, scores, masks = sess.run(output_names, {input_name: input_tensor})
  display_objdetect_image(input_image, boxes, labels, scores, masks)
  return 'out.png'
  
title="Mask R-CNN"
description="This model is a real-time neural network for object instance segmentation that detects 80 different classes."
examples=[["examplemask-rcnn.jpeg"]]
gr.Interface(inference,gr.inputs.Image(type="filepath"),gr.outputs.Image(type="file"),title=title,description=description,examples=examples).launch(enable_queue=True)