Question about JPEG-XR & a few suggestions

[wakanasakai]

I'm not sure if this should go here or in the MP support area, but I'll try here first. (If it should go in the MP support area, I hope that a mod will put it there for me.)

Yesterday, I downloaded & tried Xnview MP (zip windows 64-bit) for windows. I was hoping that it would be a big improvement to the classic Xnview (which, as I'll explain below, could use a few improvements), but I was deeply disappointed. I use Paint-dot-net for all of my image editing needs (except for animated GIFs, still looking for a free program for making & editing those), & I usually save my images as JPEG-XR images, with the quality set to lossless. (I can guarantee that it's lossless, because a color count both before & after I save an image as a JPEG-XR shows the same number.) I choose the JPEG-XR format (except for animated GIFs) because it's usually smaller than PNG (except for 8-bit images), & it has a lossless setting. However, when I tried Xnview MP, it would show me the JPEG-XR images as thumbnails when I browsed to them, but it wouldn't view them. I downloaded Xnview classic's plugins & tried to use them with Xnview MP, but still no luck. I had to give up & download Xnview classic instead (extended zip for windows), which can view JPEG-XR images as full images & not only as thumbnails.

My question is this.
Is it possible to use Xnview MP (preferably the zip windows 64-bit version) to view JPEG-XR images? If so, how? Xnview MP will be WORRTHLESS to me if it can't view them.

& a few suggestions.
1) Add support for JPEG-XR (if it's missing). (If it helps, the Paint-dot-net plugin for saving them uses the file extension .wdp)
2) Since I couldn't view most of my images with it, I'll assume that the maximum zoom is the same as Xnview classic, which seems to be 1600%. PLEASE increase that, especially for the 64-bit versions of Xnview MP.
3) In Xnview classic, I've never seen any filtering options for anything except what I'll assume is ordinary lanczos (who knows what it is, since the sloth is never identified). Please add a few more to Xnview MP. This link here http://www.dpreview.com/forums/thread/2893350 claims that Xnview classic has a lot of them. I have no idea where they got that idea from.

[m.Th.]

IMHO the XnView MP is a significant improvement over XnView Classic but (still) mainly on the architectural side of things. There are some features missing.

WRT your points:

1. I support this. (Yes, by spec JPG-XR has also loseless compression) Also, quoting from Wikipedia: http://en.wikipedia.org/wiki/JPEG_XR
"In April 2013, Microsoft released an open source JPEG XR library under the BSD licence.[41][42] This resolved any licencing issues with the library being implemented in software packages distributed under popular open source licences such as the GNU General Public License, with which the previously released "HD Photo Device Porting Kit"[43] was incompatible."

So, istm that it would be rather easy for Pierre to support it.

2. Yes, the maximum zoom is 1600%. Why do you want more?

3. Perhaps you're speaking about resampling kernels? The link you provided as well as 'lanczos' is about resampling kernels. If this is true, then XnView MP supports 9 (nine) (IINM) kernels. To see them, open a file in Edit mode by double-clicking on it and go to Image | Resize and look under 'Method' drop-down list.

[wakanasakai]

Thanks for your reply. However, your answer to my main question/first suggestion leaves me confused about if there is a way right now to have Xnview MP view JPEG-XR images? Is there a way to do that right now, either with a plugin or without one?

As to my suggestion for a bigger zoom factor, the reason why somebody would want more would be to zoom in closer than 1600% does. When I save images from the internet, I always try to find the biggest size of one, unless my search indicates that the biggest size is probably just a resize of a smaller one. So most of those images aren't super huge with super HD levels of detail. Who hasn't wanted to get a closer look at a part of an image, which is what zoom+ is for? But a 1600% limit is pretty tiny. If I want a closer look than that at something, then I either have to use futurix-imager, or else convert a JPEG-XR image into a PNG image & use faststone image viewer (that last option would defeat the purpose of having an image viewer that can view JPEG-XR images). When it comes to Xnview classic, I used to assume that the 1600% zoom limit was because of it being a 32-bit program (I've looked for 64-bit builds of Xnview classic, but I never found any), but later I realized that that couldn't be why, because faststone image viewer has a 5000% zoom limit, & fururix-imager has such a high zoom limit (it doesn't specify what exactly it is) that just one pixel can take up almost my entire 1600 x 900 screen, & both of those can do that on the very largest images that I have (most of my largest images come from the library of congress website). I never need to use a 5000% zoom, but I consider a 3000% zoom to be a minimum limit for getting a good look at details that are only a small part of an image. For the 64-bit builds of Xnview MP, it'll only seem stranger if it's zoom limit stays stuck at 1600% while other 32-bit image viewers can zoom a lot closer.

As for my last suggestion, I wasn't referring to Xnview's image editing features. I've never used any image viewer for that. I use Paint-dot-net for editing images (except for animated GIFs). Instead, my suggestion was about filters that Xnview uses for viewing images. Specifically, if you go to Xnview classic's Tools > options > view, there's the "High quality zoom" options (not sure where it is in Xnview MP). However, there's only one unnamed choice. Futurix-imager has several choices, including B-spline (my favorite), so I hope that Xnview MP can include that one as a choice for viewing filters.