adjust_contrast¶
- torchvision.transforms.functional.adjust_contrast(img: Tensor, contrast_factor: float) Tensor[源代码]¶
调整图像的对比度。
- 参数:
img (PIL Image or Tensor) – Image to be adjusted. If img is torch Tensor, it is expected to be in […, 1 or 3, H, W] format, where … means it can have an arbitrary number of leading dimensions.
contrast_factor (float) – 对比度调整的程度。可以是任何非负数。0 会得到一个实心的灰色图像，1 会得到原始图像，而 2 会将对比度提高一倍。
- 返回:
对比度调整后的图像。
- 返回类型:
PIL 图像或张量
