mxnet.image¶

Image Iterators and image augmentation functions

Image processing functions¶

`imdecode`(buf, args, *kwargs)	Decode an image to an NDArray.
`scale_down`(src_size, size)	Scales down crop size if it’s larger than image size.
`resize_short`(src, size[, interp])	Resizes shorter edge to size.
`fixed_crop`(src, x0, y0, w, h[, size, interp])	Crop src at fixed location, and (optionally) resize it to size.
`random_crop`(src, size[, interp])	Randomly crop src with size (width, height).
`center_crop`(src, size[, interp])	Crops the image src to the given size by trimming on all four sides and preserving the center of the image.
`color_normalize`(src, mean[, std])	Normalize src with mean and std.
`random_size_crop`(src, size, area, ratio[, …])	Randomly crop src with size.

ImageIter(batch_size, data_shape[, …])

Image data iterator with a large number of augmentation choices.

`CreateAugmenter`(data_shape[, resize, …])	Creates an augmenter list.
`Augmenter`(**kwargs)	Image Augmenter base class
`SequentialAug`(ts)	Composing a sequential augmenter list.
`RandomOrderAug`(ts)	Apply list of augmenters in random order
`ResizeAug`(size[, interp])	Make resize shorter edge to size augmenter.
`ForceResizeAug`(size[, interp])	Force resize to size regardless of aspect ratio
`RandomCropAug`(size[, interp])	Make random crop augmenter
`RandomSizedCropAug`(size, area, ratio[, interp])	Make random crop with random resizing and random aspect ratio jitter augmenter.
`CenterCropAug`(size[, interp])	Make center crop augmenter.
`BrightnessJitterAug`(brightness)	Random brightness jitter augmentation.
`ContrastJitterAug`(contrast)	Random contrast jitter augmentation.
`SaturationJitterAug`(saturation)	Random saturation jitter augmentation.
`HueJitterAug`(hue)	Random hue jitter augmentation.
`ColorJitterAug`(brightness, contrast, saturation)	Apply random brightness, contrast and saturation jitter in random order.
`LightingAug`(alphastd, eigval, eigvec)	Add PCA based noise.
`ColorNormalizeAug`(mean, std)	Mean and std normalization.
`RandomGrayAug`(p)	Randomly convert to gray image.
`HorizontalFlipAug`(p)	Random horizontal flip.
`CastAug`([typ])	Cast to float32

ImageDetIter(batch_size, data_shape[, …])

Image iterator with a large number of augmentation choices for detection.

`CreateDetAugmenter`(data_shape[, resize, …])	Create augmenters for detection.
`DetBorrowAug`(augmenter)	Borrow standard augmenter from image classification.
`DetRandomSelectAug`(aug_list[, skip_prob])	Randomly select one augmenter to apply, with chance to skip all.
`DetHorizontalFlipAug`(p)	Random horizontal flipping.
`DetRandomCropAug`([min_object_covered, …])	Random cropping with constraints
`DetRandomPadAug`([aspect_ratio_range, …])	Random padding augmenter.