Open Fighting-bruceCHN opened 2 months ago
Hello @Fighting-bruceCHN,
Just crop the matching areas, for example:
a = pyvips.Image.new_from_file("file1.tif")
b = pyvips.Image.new_from_file("file2.tif")
tile1 = a.crop(10, 10, 512, 512)
tile2 = b.crop(10, 10, 512, 512)
tile1.write_to_file("tile1.jpg")
tile2.write_to_file("tile2.jpg")
If you write your tiff image in tiled format this will be much faster.
Ah do you want users to be able to scroll around the images and compare the alignment?
I would save both images as deepzoom, perhaps with:
a = pyvips.Image.new_from_file("file1.tif")
b = pyvips.Image.new_from_file("file2.tif")
tile1.dzsave("file1")
tile2.dzsave("file2")
Then make a web page with openseadragon that loads both images:
http://openseadragon.github.io/examples/multi-image/
You'll need to add some UI to control the opacity of your two layers. Now users will be able to interactively view the images and check for alignment issues.
pyvips.error.Error: no such operation dzsave VipsOperation: class "dzsave" not found
linux下报这个错
Please open a new issue for a new question.
(your libvips has probably been built without libarchive)
Hi,
I'm using pyvips for image registration on whole slide images (WSI). I have successfully generated both the target and warped source images, both in TIFF format and of the same size (23157 x 47374).
I need to crop the same region from these two TIFF images and save the cropped areas as PNG or JPG files, so I can easily visualize the registration results on a remote server. Could you please guide me on how to accomplish this?
Thank you for your great library.