https://bugs.kde.org/show_bug.cgi?id=454206
--- Comment #19 from Mirco Miranda <mirco...@gmail.com> --- (In reply to Martin Kyral from comment #17) > Thanks for working on this problem. Just to clarify: almost all raw formats > contain actually two jpg previews: the 160x120 thumbnail (which is not > usable even as a thumbnail now) and larger jpg preview which is either > full-res (Nikon, Canon... ) or with reduced size but still enough for casual > viewing (it is what you see at the back display of the camera when reviewing > images). You need to get the correct (larger) one from the raw file. We merged MR !299 (https://invent.kde.org/frameworks/kimageformats/-/merge_requests/299). It will be included in KF 6.11. You can set the quality parameter to 0 to load the preview. You can do it with something like this: QImageReader ir("fileraw.rawsuffix"); // e.g. "image.cr3" ir.setDecideFormatFromContent(true); // needed if (ir.format() == QByteArray("raw")) { ir.setQuality(0); // read preview } QImage img; ir.read(&img); Note that the quality parameter is normally dedicated to writing. Here it was used as a hack to set parameters to libRAW. To know all the possibilities see the plugin header: https://invent.kde.org/frameworks/kimageformats/-/blob/master/src/imageformats/raw_p.h -- You are receiving this mail because: You are watching all bug changes.
