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| author | Dark Matter <darkmatter1932@gmail.com> | 2016-03-03 04:27:25 +0300 |
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| committer | Dark Matter <darkmatter1932@gmail.com> | 2016-03-03 04:27:25 +0300 |
| commit | 8f3ea101eb20e32092bab0e9c15514d8fb27cc79 (patch) | |
| tree | 7cb4f27d2293a4881519991037f8a921634e93cd /doc | |
| parent | 8a0d406d0e00e7956eba2afe7d45b46afb7216d0 (diff) | |
Update simpletransform.md
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/simpletransform.md | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/doc/simpletransform.md b/doc/simpletransform.md index 2f5be1f..52b5341 100644 --- a/doc/simpletransform.md +++ b/doc/simpletransform.md @@ -6,8 +6,27 @@ like cropping, translation, scaling and rotation. <a name="image.crop"></a> ### [res] image.crop([dst,] src, x1, y1, [x2, y2]) ### Crops image `src` at coordinate `(x1, y1)` up to coordinate -`(x2, y2)`. If `dst` is provided, it is used to store the output -image. Otherwise, returns a new `res` Tensor. +`(x2, y2)`. The coordinate indexing is zero-based and `(x2, y2)` is non-inclusive. +If `dst` is provided, it is used to store the output +image. Otherwise, returns a new `res` Tensor. + +```lua +-- The indexing starts with 0 and 2 is non-inclusive coordinate. +> require('image') +> image.crop(torch.Tensor(3, 2, 2), 0, 0 , 2, 2) -- crop is a correct crop and the result is 3x2x2 tensor. +(1,.,.) = + 0 0 + 0 0 + +(2,.,.) = + 0 0 + 0 0 + +(3,.,.) = + 0 0 + 0 0 +[torch.DoubleTensor of size 3x2x2] +``` ### [res] image.crop([dst,] src, format, width, height) ### Crops a `width x height` section of source image `src`. The argument |