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我已经尝试过这种方法如何获取图像亮度梯度的图像亮度梯度,但我得到了完全不同的输出。有没有办法获得类似渐变的https://29a.ch/photo-forensics/#luminance-gradient这个网站。
从网站输出
我使用 Sobel 过滤器的输出: