transform_random_affine: Random affine transformation of the image keeping center...

In mlverse/torchvision: Models, Datasets and Transformations for Images

Random affine transformation of the image keeping center invariant

Description

Random affine transformation of the image keeping center invariant

Usage

transform_random_affine(
  img,
  degrees,
  translate = NULL,
  scale = NULL,
  shear = NULL,
  resample = 0,
  fillcolor = 0
)

Arguments

img	A magick-image, array or torch_tensor.
degrees	(sequence or float or int): Range of degrees to select from. If degrees is a number instead of sequence like c(min, max), the range of degrees will be (-degrees, +degrees).
translate	(tuple, optional): tuple of maximum absolute fraction for horizontal and vertical translations. For example translate=c(a, b), then horizontal shift is randomly sampled in the range -img_width * a < dx < img_width * a and vertical shift is randomly sampled in the range -img_height * b < dy < img_height * b. Will not translate by default.
scale	(tuple, optional): scaling factor interval, e.g c(a, b), then scale is randomly sampled from the range a <= scale <= b. Will keep original scale by default.
shear	(sequence or float or int, optional): Range of degrees to select from. If shear is a number, a shear parallel to the x axis in the range (-shear, +shear) will be applied. Else if shear is a tuple or list of 2 values a shear parallel to the x axis in the range ⁠(shear[1], shear[2])⁠ will be applied. Else if shear is a tuple or list of 4 values, a x-axis shear in ⁠(shear[1], shear[2])⁠ and y-axis shear in ⁠(shear[3], shear[4])⁠ will be applied. Will not apply shear by default.
resample	(int, optional): An optional resampling filter. See interpolation modes.
fillcolor	(tuple or int): Optional fill color (Tuple for RGB Image and int for grayscale) for the area outside the transform in the output image (Pillow>=5.0.0). This option is not supported for Tensor input. Fill value for the area outside the transform in the output image is always 0.

See Also

Other transforms: transform_adjust_brightness(), transform_adjust_contrast(), transform_adjust_gamma(), transform_adjust_hue(), transform_adjust_saturation(), transform_affine(), transform_center_crop(), transform_color_jitter(), transform_convert_image_dtype(), transform_crop(), transform_five_crop(), transform_grayscale(), transform_hflip(), transform_linear_transformation(), transform_normalize(), transform_pad(), transform_perspective(), transform_random_apply(), transform_random_choice(), transform_random_crop(), transform_random_erasing(), transform_random_grayscale(), transform_random_horizontal_flip(), transform_random_order(), transform_random_perspective(), transform_random_resized_crop(), transform_random_rotation(), transform_random_vertical_flip(), transform_resize(), transform_resized_crop(), transform_rgb_to_grayscale(), transform_rotate(), transform_ten_crop(), transform_to_tensor(), transform_vflip()

mlverse/torchvision documentation built on Sept. 18, 2024, 4:03 p.m.