26 lines
807 B
Python
26 lines
807 B
Python
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import cv2
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import matplotlib.pyplot as plt
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if __name__ == '__main__':
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# 讀取圖像
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image = cv2.imread(r"50.bmp", cv2.IMREAD_GRAYSCALE)
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# 反轉圖像的 Y 軸
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flipped_image = cv2.flip(image, 0)
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# 選擇特定的列（x 軸等於 1024）
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column_index = 2736
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y_coordinates = range(0, 3648)
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column_data = flipped_image[y_coordinates, column_index]
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# 打印每個 Y 坐標的灰度值和索引
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for y_coord, pixel_value in zip(y_coordinates, column_data):
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print(f"Y 坐標: {y_coord}, 灰度值: {pixel_value}")
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# 繪製直方圖
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plt.plot(column_data, y_coordinates, color='gray')
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plt.xlabel('像素強度')
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plt.ylabel('Y 軸坐標（反向）')
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plt.title(f'在 X 軸 = {column_index} 的灰度分佈 (Y 坐標: 0-2047)')
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plt.show()
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