Comments (4)
I don't quite understand the meaning of the results, but since you figured it out I'm going to close it.
from imagetransformations.jl.
- Instead of
h=homography2d(srcs,tgts)
, can you start with hardcoded transformation matrix? Because no tests are written forhomography2d
, I'm skeptical of this statement "using the same homography matrix". - Instead of using big real images like this, can you try it on very small images (e.g.,
reshape(collect(0:0.04:0.96), 5, 5)
)?
from imagetransformations.jl.
- I used
homography2d
to get the homography matrix, and then hardcoded that matrix to Kornia which gave me the above results. Therefore, I don't thinkhomography2d
is giving us a problem. - I will try using smaller images as you have suggested.
from imagetransformations.jl.
I have gotten why this was going south.
Plot.jl is plotting according to the transposed dimensions. Surprisingly, FileIO was also reading the images according to transposed dimensions.
[i, j]
in images/array indexing mean that i
is along the vertical axis and j
is along the horizontal axis.
In Plots.jl, it plots the i
along the horizontal axis and j
along the vertical axis. Hence the issue.
With small changes, like this -
src_img = load("source.jpeg")'
tgt_img = load("target.jpeg")'
...
plot(mosaicview(tgt_img,warp_me2(src_img,h);nrow=1))
This is the correct warp I get, of course transposed image -
from imagetransformations.jl.
Related Issues (20)
- Does ForwardDiff work with ImageTransformations? HOT 3
- demo: grid stretching and elastic transformation
- add swirl function HOT 1
- No stable version document is deployed HOT 6
- Add `Projective` transformation HOT 2
- Demos using CoordinateTransformations and Rotations
- Repeated warping HOT 6
- `imrotate(img, pi/2)` changes size of image HOT 3
- Clarification of rotations HOT 7
- Rotation operation is inaccurate HOT 2
- Custom image transformation? HOT 4
- imresize without interpolation for integer upscaling
- imflip function
- The reference frame associated to an image is not the best one to perform a shear transformation HOT 6
- Support for autodiff in warping?
- Support v0.15 of Interpolations.jl HOT 1
- Warp seems to be off HOT 1
- Add docs for imresize!
- Cropping after warp HOT 2
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from imagetransformations.jl.