XnView Software

Are you sure the loss isn't introduced in converting from RGB to YUV and back? Some colors can be badly affected by that, especially in very light and dark regions. I don't think XnView uses RGB in WebP at all, so it's only lossless after the conversion to YUV. Hmm, I'm not sure I get your point. A...

you have not the same as cwebp?? Could you send me orignal file, and saved file, please I use the following command: cwebp -lossless original.png -o output.webp For xnview I use: http://snag.gy/5qSD7.jpg The results and original: https://www.dropbox.com/sh/poqmnuh6nb94a56/AAAwMGJ1wPw1RvbzX2GGjYPDa?...

Windows x64 zip

See: http://newsgroup.xnview.com/viewtopic.php?f=62&t=30793

I chose lossless, but the result is still a lossy file.

I've tried and it works. the webp.dll has which file date? 2013/03/31 (in both XnViewMP-win-x64.zip and XnViewMP-win.zip downloaded from http://newsgroup.xnview.com/viewtopic.php?f=82&t=30761 ) And even if it could produce lossless image by setting q to 100.. it loses the ability to create q100 LOS...

I didn't get your point, but I just read the parameters of cwebp. It separates lossy and lossless- with lossy, even you set the quality (-q) to 100 it's still lossy. Makes sense, but then what do you mean by "when quality=100, i use lossless"? cwebp has a lossless parameter?? If I read correctly, y...

when quality=100, i use lossless. Which app do you use to create lossless webp? uh.. xnview MP 0.69? ok :) do you have tried official tools cwebp? I didn't get your point, but I just read the parameters of cwebp. It separates lossy and lossless- with lossy, even you set the quality (-q) to 100 it's...

xnview wrote:when quality=100, i use lossless. Which app do you use to create lossless webp?

uh.. xnview MP 0.69?

It's related to an old bug: http://newsgroup.xnview.com/viewtopic.php?f=79&t=29875 I'm not very sure the meaning of that bug (and its fix). was it about merely "can't set to 100%" or "can't save as lossless" or both? (Because in JPEG 100%!=lossless, not sure if it's the case in WebP) Anyway, in 0.69...

I've already read this thread: http://forum.xnview.com/viewtopic.php?f=79&t=23119 The mod there said XnViewMP used IJG's lib to convert JPEG, I'm not sure if it's still the case. If we're still using IJG's implementation, IJG's lib does have quality setting of 0-100, instead of 0-99: (Copied from us...

The title is kinda inexact. Instead of "unchangeable", every time you exited XnConvert this setting will be changed to "checked".