Download app.py from Rinka0616/practice3: direct link, hf CLI and curl.
- Browser
- Download file 4.23 kB
-
https://huggingface.co/spaces/Rinka0616/practice3/resolve/main/app.py
- Command line
-
hf download hf://spaces/Rinka0616/practice3/app.py
-
curl -L -o app.py https://huggingface.co/spaces/Rinka0616/practice3/resolve/main/app.py
4.23 kB
| import gradio as gr | |
| import random | |
| from matplotlib import gridspec | |
| import matplotlib.pyplot as plt | |
| import numpy as np | |
| from PIL import Image | |
| import tensorflow as tf | |
| from transformers import SegformerFeatureExtractor, TFSegformerForSemanticSegmentation | |
| feature_extractor = SegformerFeatureExtractor.from_pretrained( | |
| "nvidia/segformer-b5-finetuned-cityscapes-1024-1024" | |
| ) | |
| model = TFSegformerForSemanticSegmentation.from_pretrained( | |
| "nvidia/segformer-b5-finetuned-cityscapes-1024-1024" | |
| ) | |
| def palette(): | |
| return [ | |
| [204, 87, 92], # road (Reddish) | |
| [112, 185, 212], # sidewalk (Blue) | |
| [196, 160, 122], # building (Brown) | |
| [106, 135, 242], # wall (Light Blue) | |
| [91, 192, 222], # fence (Turquoise) | |
| [255, 192, 203], # pole (Pink) | |
| [176, 224, 230], # traffic light (Light Blue) | |
| [222, 49, 99], # traffic sign (Red) | |
| [139, 69, 19], # vegetation (Brown) | |
| [255, 0, 0], # terrain (Red) | |
| [0, 0, 255], # sky (Blue) | |
| [255, 228, 181], # person (Peach) | |
| [128, 0, 0], # rider (Maroon) | |
| [0, 128, 0], # car (Green) | |
| [255, 99, 71], # truck (Tomato) | |
| [0, 255, 0], # bus (Lime) | |
| [128, 0, 128], # train (Purple) | |
| [255, 255, 0], # motorcycle (Yellow) | |
| [128, 0, 128] # bicycle (Purple) | |
| ] | |
| labels_list = [] | |
| with open(r'labels.txt', 'r') as fp: | |
| for line in fp: | |
| labels_list.append(line[:-1]) | |
| colormap = np.asarray(palette()) | |
| def label_to_color_image(label): | |
| if label.ndim != 2: | |
| raise ValueError("Expect 2-D input label") | |
| if np.max(label) >= len(colormap): | |
| raise ValueError("label value too large.") | |
| return colormap[label] | |
| def draw_plot(pred_img, seg): | |
| fig = plt.figure(figsize=(20, 15)) | |
| grid_spec = gridspec.GridSpec(1, 2, width_ratios=[6, 1]) | |
| plt.subplot(grid_spec[0]) | |
| plt.imshow(pred_img) | |
| plt.axis('off') | |
| LABEL_NAMES = np.asarray(labels_list) | |
| FULL_LABEL_MAP = np.arange(len(LABEL_NAMES)).reshape(len(LABEL_NAMES), 1) | |
| FULL_COLOR_MAP = label_to_color_image(FULL_LABEL_MAP) | |
| unique_labels = np.unique(seg.numpy().astype("uint8")) | |
| ax = plt.subplot(grid_spec[1]) | |
| plt.imshow(FULL_COLOR_MAP[unique_labels].astype(np.uint8), interpolation="nearest") | |
| ax.yaxis.tick_left() | |
| plt.yticks(range(len(unique_labels)), LABEL_NAMES[unique_labels]) | |
| plt.xticks([], []) | |
| ax.tick_params(width=0.0, labelsize=27) | |
| return fig | |
| def sepia(input_img): | |
| input_img = Image.fromarray(input_img) | |
| inputs = feature_extractor(images=input_img, return_tensors="tf") | |
| outputs = model(**inputs) | |
| logits = outputs.logits | |
| logits = tf.transpose(logits, [0, 2, 3, 1]) | |
| logits = tf.image.resize( | |
| logits, input_img.size[::-1] | |
| ) # We reverse the shape of `image` because `image.size` returns width and height. | |
| seg = tf.math.argmax(logits, axis=-1)[0] | |
| color_seg = np.zeros( | |
| (seg.shape[0], seg.shape[1], 3), dtype=np.uint8 | |
| ) # height, width, 3 | |
| for label, color in enumerate(colormap): | |
| color_seg[seg.numpy() == label, :] = color | |
| # Show image + mask | |
| pred_img = np.array(input_img) * 0.5 + color_seg * 0.5 | |
| pred_img = pred_img.astype(np.uint8) | |
| fig = draw_plot(pred_img, seg) | |
| return fig | |
| demo = gr.Interface(fn=sepia, | |
| inputs=gr.Image(shape=(564,846)), | |
| outputs=['plot'], | |
| live=True, | |
| examples=["city1.jpg","city2.jpg","city3.jpg","city4.jpg","city5.jpg"], | |
| allow_flagging='never', | |
| title="City Image Segmentation Model", | |
| theme="huggingfacedark", | |
| description="This model is a high-performance city image segmentation model based on the Segformer architecture provided by NVIDIA. Specifically, the 'segformer-b5' model, trained on the Cityscapes dataset, excels at performing intricate segmentation on high-resolution images of 1024x1024 pixels. It accurately identifies various urban elements such as roads, buildings, pedestrians, providing visually rich segmentation results.This is a machine learning activity project at Kyunggi University.", | |
| ) | |
| demo.launch() | |