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import gradio as gr
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-b0-finetuned-ade-512-512"
)
model = TFSegformerForSemanticSegmentation.from_pretrained(
"nvidia/segformer-b0-finetuned-ade-512-512"
)
def ade_palette():
"""ADE20K palette that maps each class to RGB values."""
return [
[53, 53, 53],
[0, 84, 255],
[171, 242, 0],
[255, 0, 221],
[255, 228, 0],
[92, 209, 229],
[153, 56, 0],
[128, 65, 217],
[116, 116, 116],
[47, 157, 39],
[217, 65, 140],
[255, 255, 255],
[255, 178, 245],
[61, 183, 204],
[153, 0, 76],
[71, 102, 0],
[255, 167, 167],
[25, 25, 25],
[53, 53, 53],
[0, 84, 255],
[171, 242, 0],
[255, 0, 221],
[255, 228, 0],
[92, 209, 229],
[153, 56, 0],
[128, 65, 217],
[53, 53, 53],
[0, 84, 255],
[171, 242, 0],
[255, 0, 221],
[255, 228, 0],
[92, 209, 229],
[153, 56, 0],
[128, 65, 217],
[53, 53, 53],
[0, 84, 255],
[171, 242, 0],
[255, 0, 221],
[255, 228, 0],
[92, 209, 229],
[153, 56, 0],
[128, 65, 217],
[53, 53, 53],
[0, 84, 255],
[171, 242, 0],
[255, 0, 221],
[255, 228, 0],
[92, 209, 229],
[153, 56, 0],
[128, 65, 217],
[53, 53, 53],
[0, 84, 255],
[171, 242, 0],
[255, 0, 221],
[255, 228, 0],
[92, 209, 229],
[153, 56, 0],
[128, 65, 217],
[0, 84, 255],
[171, 242, 0],
[255, 0, 221],
[255, 228, 0],
[92, 209, 229],
[153, 56, 0],
[128, 65, 217],
[53, 53, 53],
[0, 84, 255],
[171, 242, 0],
[255, 0, 221],
[255, 228, 0],
[92, 209, 229],
[153, 56, 0],
[128, 65, 217],
[53, 53, 53],
[0, 84, 255],
[171, 242, 0],
[255, 0, 221],
[255, 228, 0],
[92, 209, 229],
[153, 56, 0],
[128, 65, 217],
[53, 53, 53],
[0, 84, 255],
[171, 242, 0],
[255, 0, 221],
[255, 228, 0],
[92, 209, 229],
[153, 56, 0],
[128, 65, 217],
[53, 53, 53],
[0, 84, 255],
[171, 242, 0],
[255, 0, 221],
[255, 228, 0],
[92, 209, 229],
[153, 56, 0],
[128, 65, 217],
[53, 53, 53],
[0, 84, 255],
[171, 242, 0],
[255, 0, 221],
[255, 228, 0],
[92, 209, 229],
[153, 56, 0],
[128, 65, 217],
[53, 53, 53],
[0, 84, 255],
[171, 242, 0],
[255, 0, 221],
[255, 228, 0],
[92, 209, 229],
[153, 56, 0],
[128, 65, 217],
[53, 53, 53],
[0, 84, 255],
[171, 242, 0],
[255, 0, 221],
[255, 228, 0],
[92, 209, 229],
[153, 56, 0],
[128, 65, 217],
[53, 53, 53],
[0, 84, 255],
[171, 242, 0],
[255, 0, 221],
[255, 228, 0],
[92, 209, 229],
[153, 56, 0],
[128, 65, 217],
[53, 53, 53],
[0, 84, 255],
[171, 242, 0],
[255, 0, 221],
[255, 228, 0],
[92, 209, 229],
[153, 56, 0],
[128, 65, 217],
[53, 53, 53],
[0, 84, 255],
[171, 242, 0],
[255, 0, 221],
[255, 228, 0],
[92, 209, 229],
[153, 56, 0],
[128, 65, 217],
[53, 53, 53],
[0, 84, 255],
[171, 242, 0],
[255, 0, 221],
[255, 228, 0],
]
labels_list = []
with open(r'labels.txt', 'r') as fp:
for line in fp:
labels_list.append(line[:-1])
colormap = np.asarray(ade_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_right()
plt.yticks(range(len(unique_labels)), LABEL_NAMES[unique_labels])
plt.xticks([], [])
ax.tick_params(width=0.0, labelsize=25)
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=(512, 512)),
outputs=['plot'],
examples=["image1.jpg", "image2.jpg", "image3.jpg", "image4.jpg"],
allow_flagging='never'
)
demo.launch()
import gradio as gr
def update(name):
return f"Welcome to Gradio, {name}!"
with gr.Blocks() as visit:
gr.Markdown("Start typing below and then click **방명록** to see the output.")
with gr.Row():
inp = gr.Textbox(placeholder="방문을 환영합니다. 성함이 어떻게 되세요?")
out = gr.Textbox()
btn = gr.Button("방명록")
btn.click(fn=update, inputs=inp, outputs=out)
demo.launch()
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