Improve multi-frame image resizing (#2789)

* Ports vips_thumbnail logic to sharp 
* Deprecates the pageHeight output option for WebP/GIF
This commit is contained in:
Kleis Auke Wolthuizen
2021-12-10 21:32:04 +01:00
committed by GitHub
parent 659cdabd8e
commit 513fb40f40
29 changed files with 619 additions and 334 deletions

View File

@@ -108,6 +108,18 @@ namespace sharp {
*/
VImage EnsureColourspace(VImage image, VipsInterpretation colourspace);
/*
* Split and crop each frame, reassemble, and update pageHeight.
*/
VImage CropMultiPage(VImage image, int left, int top, int width, int height,
int nPages, int *pageHeight);
/*
* Split into frames, embed each frame, reassemble, and update pageHeight.
*/
VImage EmbedMultiPage(VImage image, int left, int top, int width, int height,
std::vector<double> background, int nPages, int *pageHeight);
} // namespace sharp
#endif // SRC_OPERATIONS_H_