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from turtle import title
import os
import gradio as gr
from transformers import pipeline
import numpy as np
from PIL import Image
import torch
import cv2
from transformers import CLIPSegProcessor, CLIPSegForImageSegmentation,AutoProcessor,AutoConfig
from skimage.measure import label, regionprops
processor = CLIPSegProcessor.from_pretrained("CIDAS/clipseg-rd64-refined")
model = CLIPSegForImageSegmentation.from_pretrained("CIDAS/clipseg-rd64-refined")
random_images = []
images_dir = 'images/'
for idx, images in enumerate(os.listdir(images_dir)):
image = os.path.join(images_dir, images)
if os.path.isfile(image) and idx < 10:
random_images.append(image)
def rescale_bbox(bbox,orig_image_shape=(1024,1024),model_shape=352):
bbox = np.asarray(bbox)/model_shape
y1,y2 = bbox[::2] *orig_image_shape[0]
x1,x2 = bbox[1::2]*orig_image_shape[1]
return [int(y1),int(x1),int(y2),int(x2)]
def detect_using_clip(image,prompts=[],threshould=0.4):
model_detections = dict()
inputs = processor(
text=prompts,
images=[image] * len(prompts),
padding="max_length",
return_tensors="pt",
)
with torch.no_grad(): # Use 'torch.no_grad()' to disable gradient computation
outputs = model(**inputs)
preds = outputs.logits.unsqueeze(1)
detection = outputs.logits[0] # Assuming class index 0
for i,prompt in enumerate(prompts):
predicted_image = torch.sigmoid(preds[i][0]).detach().cpu().numpy()
predicted_image = np.where(predicted_image>threshould,255,0)
# extract countours from the image
lbl_0 = label(predicted_image)
props = regionprops(lbl_0)
model_detections[prompt] = [rescale_bbox(prop.bbox,orig_image_shape=image.shape[:2],model_shape=predicted_image.shape[0]) for prop in props]
return model_detections
def display_images(image,detections,prompt='traffic light'):
H,W = image.shape[:2]
image_copy = image.copy()
if prompt not in detections.keys():
print("prompt not in query ..")
return image_copy
for bbox in detections[prompt]:
cv2.rectangle(image_copy, (int(bbox[1]), int(bbox[0])), (int(bbox[3]), int(bbox[2])), (255, 0, 0), 2)
return image_copy
def shot(image, labels_text):
prompts = labels_text.split(',')
global classes
classes = prompts
print(classes)
detections = detect_using_clip(image,prompts=prompts)
print(detections)
return 0
with gr.Blocks(title="Zero Shot Object ddetection using Text Prompts") as demo :
gr.Markdown(
"""
<center>
<h1>
The CLIP Model
</h1>
A neural network called CLIP which efficiently learns visual concepts from natural language supervision. CLIP can be applied to any visual classification benchmark by simply providing the names of the visual categories to be recognized, similar to the “zero-shot” capabilities of GPT-2 and GPT-3.
</center>
"""
)
with gr.Row():
with gr.Column():
inputt = gr.Image(type="numpy", label="Input Image for Classification")
labels = gr.Textbox(placeholder="Enter Label/ labels ex. cat,car,door,window,",scale=4)
button = gr.Button(value="Locate objects")
with gr.Column():
outputs = gr.Image(type="numpy", label="Detected Objects with Selected Category")
button.click(shot,inputt,labels)
demo.launch()
# iface = gr.Interface(fn=shot,
# inputs = ["image","text","label"],
# outputs=output,
# examples=random_images,
# allow_flagging=False,
# analytics_enabled=False,
# )
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