1.4.5 - viewer - opens RAW as 256x256x24

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user0
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1.4.5 - viewer - opens RAW as 256x256x24

Post by user0 »

XnViewMP 1.4.5 64bit
Windows11 (22H2), display resolution 3840x2160, win scaling 150%


Viewer
XnViewMP/Classic opens RAW files as 256x256x24, as there is no dialog to set its options (see ps example).
Or am I missing something here?

To reproduce:
1. run clean portable XnViewMP
2. open any image (eg. jpg 3264x2448x24)
3. CTRL+SHIFT+S to Save as
4. select RAW and save
5. open RAW file (default settings for raw read: 256x256x24)

Issue A
XnViewMP/Classic previews and opens it as 256x256x24
xn_RAW.png

Issue B
after ~5seconds viewer will open previous file in folder (if any exists).
If there are no files before RAW in folder, it will stay openned

Issue C
  • C1
    6. change RAW read settings to correct ones (once you already opened RAW with incorrect settings), press OK
    7. press CTRL+R to reload image
    tab become <empty>
  • C2
    4. change RAW read settings (before opening RAW), press OK
    5. open RAW
    it opens correctly
    6. press CTRL+R multiple times
    tab become <empty>


Suggestion
Photoshop opens file correctly with right manually entered values, so maybe adding similar dialog will help
ps_raw_open_options.png

https://en.wikipedia.org/wiki/Raw_image_format#Raw_bitmap_files wrote:Raw bitmap files
Less commonly, raw may also refer to a generic image file format containing only pixel color values. For example, "Photoshop Raw" files (.raw) contain 8-bits-per-channel RGB data in top-to-bottom, left-to-right pixel order. Dimensions must be input manually when such files are re-opened, or a square image is assumed. Due to its simplicity, this format is very open and compatible, though limited by its lack of metadata and run-length encoding. Especially in photography and graphic design, where color management and extended gamuts are important, and large images are common.
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Last edited by user0 on Fri Jun 02, 2023 4:58 pm, edited 1 time in total.
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xnview
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Re: 1.4.5 - viewer - opens RAW as 256x256x24

Post by xnview »

you need to change values in settings>Formats>Read>RAW
Pierre.
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user0
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Re: 1.4.5 - viewer - opens RAW as 256x256x24

Post by user0 »

well, it works, but very inconvinient, a popup on image open is a must for such cases
also few issues remain: B, C
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xnview
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Re: 1.4.5 - viewer - opens RAW as 256x256x24

Post by xnview »

user0 wrote: Fri Jun 02, 2023 4:51 pm also few issues remain: B, C
i can't reproduce the 2 issues
Pierre.
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user0
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Re: 1.4.5 - viewer - opens RAW as 256x256x24

Post by user0 »

xnview wrote: Sat Jun 03, 2023 8:14 am
user0 wrote: Fri Jun 02, 2023 4:51 pm also few issues remain: B, C
i can't reproduce the 2 issues
try with these 2 files in folder
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