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import numpy as np | |
import tensorflow as tf | |
import gradio as gr | |
from huggingface_hub import from_pretrained_keras | |
import cv2 | |
model = from_pretrained_keras("keras-io/deeplabv3p-resnet50") | |
colormap = np.array([[0,0,0], [31,119,180], [44,160,44], [44, 127, 125], [52, 225, 143], | |
[217, 222, 163], [254, 128, 37], [130, 162, 128], [121, 7, 166], [136, 183, 248], | |
[85, 1, 76], [22, 23, 62], [159, 50, 15], [101, 93, 152], [252, 229, 92], | |
[167, 173, 17], [218, 252, 252], [238, 126, 197], [116, 157, 140], [214, 220, 252]], dtype=np.uint8) | |
img_size = 512 | |
def read_image(image): | |
image = tf.convert_to_tensor(image) | |
image.set_shape([None, None, 3]) | |
image = tf.image.resize(images=image, size=[img_size, img_size]) | |
image = image / 127.5 - 1 | |
return image | |
def infer(model, image_tensor): | |
predictions = model.predict(np.expand_dims((image_tensor), axis=0)) | |
predictions = np.squeeze(predictions) | |
predictions = np.argmax(predictions, axis=2) | |
return predictions | |
def decode_segmentation_masks(mask, colormap, n_classes): | |
r = np.zeros_like(mask).astype(np.uint8) | |
g = np.zeros_like(mask).astype(np.uint8) | |
b = np.zeros_like(mask).astype(np.uint8) | |
for l in range(0, n_classes): | |
idx = mask == l | |
r[idx] = colormap[l, 0] | |
g[idx] = colormap[l, 1] | |
b[idx] = colormap[l, 2] | |
rgb = np.stack([r, g, b], axis=2) | |
return rgb | |
def get_overlay(image, colored_mask): | |
image = tf.keras.preprocessing.image.array_to_img(image) | |
image = np.array(image).astype(np.uint8) | |
overlay = cv2.addWeighted(image, 0.35, colored_mask, 0.65, 0) | |
return overlay | |
def segmentation(input_image): | |
image_tensor = read_image(input_image) | |
prediction_mask = infer(image_tensor=image_tensor, model=model) | |
prediction_colormap = decode_segmentation_masks(prediction_mask, colormap, 20) | |
overlay = get_overlay(image_tensor, prediction_colormap) | |
return (overlay, prediction_colormap) | |
i = gr.inputs.Image() | |
o = [gr.outputs.Image('pil'), gr.outputs.Image('pil')] | |
examples = [["example_image_2.jpeg"], ["example_image_2.jpg"], ["example_image_3.jpeg"]] | |
title = "Human Part Segmentation" | |
description = "Upload an image or select from examples to segment out different human parts." | |
article = "<div style='text-align: center;'><a href='https://keras.io/examples/vision/deeplabv3_plus/' target='_blank'>Keras example by Praveen Kaushik</a></div>" | |
gr.Interface(segmentation, i, o, examples=examples, allow_flagging=False, analytics_enabled=False, | |
title=title, description=description, article=article).launch(enable_queue=True) |