Multiple HEIC bugs
Moderators: XnTriq, helmut, xnview, Dreamer
Multiple HEIC bugs
At some resolution, you will got 0 byte
try this picture, u will got 0 byte
https://i.imgur.com/C8a9uYC.png
convert to heic will change the color.
here's the comparison:
https://i.imgur.com/A4XtdfE.png
try it yourself, green and red color will be changed.
https://i.imgur.com/3QBdubX.png
and some resolution u will got strange lines:
https://i.imgur.com/kWxzBuo.png
here's the original file:
https://i.imgur.com/46shuMJ.png
try this picture, u will got 0 byte
https://i.imgur.com/C8a9uYC.png
convert to heic will change the color.
here's the comparison:
https://i.imgur.com/A4XtdfE.png
try it yourself, green and red color will be changed.
https://i.imgur.com/3QBdubX.png
and some resolution u will got strange lines:
https://i.imgur.com/kWxzBuo.png
here's the original file:
https://i.imgur.com/46shuMJ.png
Re: Multiple HEIC bugs
Hi 4h4h270, I tested HEIC file saving, too.
I recognized the same problems in the past.
XnViewMP use the Windows HEIC Plugin from Microsoft App Store for writing HEIC files.
If the picture width or height size is odd, you will see the multiple lines in the saved heic file.
See the post to XnViewMP 0.94: viewtopic.php?f=62&t=39677&p=159426&hilit=heic#p159426
Your color errors (green is not the same green or red is not the same red) should be problems of the HEIC plugin.
I recognized the same problems in the past.
XnViewMP use the Windows HEIC Plugin from Microsoft App Store for writing HEIC files.
If the picture width or height size is odd, you will see the multiple lines in the saved heic file.
See the post to XnViewMP 0.94: viewtopic.php?f=62&t=39677&p=159426&hilit=heic#p159426
Your color errors (green is not the same green or red is not the same red) should be problems of the HEIC plugin.
PC: Intel 8700k + Asus Z370-F + 16 GB RAM G.Skill + Asus RTX 3050 OC + Samsung SSD
OS: Windows 10 Pro 64bit 22H2 |
GFX: XN-View 2.51.5 | XnViewMP 1.6.5 | XnConvert 1.100.1 | Adobe Photoshop Elements 2024 | Elements XXL 11 | Paint.Net
OS: Windows 10 Pro 64bit 22H2 |
GFX: XN-View 2.51.5 | XnViewMP 1.6.5 | XnConvert 1.100.1 | Adobe Photoshop Elements 2024 | Elements XXL 11 | Paint.Net
Re: Multiple HEIC bugs
Do you use the HEIC Plugin from Microsoft App Store or the XnView's plugin?
Pierre.
Re: Multiple HEIC bugs
I have the same problem. I tested with 0.94.3 using MS HEIC plugin, and 0.98.2 using XnView's plugin. Both have problems of 0 byte and strange black lines. But only 0.98.2 has color errors.
And when I using MS Photo app, no color errors exists. So maybe the decoder of Xnview's heif plugin has bugs, just as @masterjp said.
Re: Multiple HEIC bugs
Could you send me a sample file?Cheeling wrote: ↑Sun Apr 11, 2021 9:14 amI have the same problem. I tested with 0.94.3 using MS HEIC plugin, and 0.98.2 using XnView's plugin. Both have problems of 0 byte and strange black lines. But only 0.98.2 has color errors.
And when I using MS Photo app, no color errors exists. So maybe the decoder of Xnview's heif plugin has bugs, just as @masterjp said.
Pierre.
Re: Multiple HEIC bugs
Sample files are No.1, 3, 5 image from 4h4h270's post.xnview wrote: ↑Mon Apr 12, 2021 8:43 amCould you send me a sample file?Cheeling wrote: ↑Sun Apr 11, 2021 9:14 am
I have the same problem. I tested with 0.94.3 using MS HEIC plugin, and 0.98.2 using XnView's plugin. Both have problems of 0 byte and strange black lines. But only 0.98.2 has color errors.
And when I using MS Photo app, no color errors exists. So maybe the decoder of Xnview's heif plugin has bugs, just as @masterjp said.
But color errors are not limited to that sample, almost all images I tested can reproduce. Belows are comparision about opening Xnview encoded heic and png, in Xnview and MS Photo App.4h4h270 wrote: ↑Mon Mar 29, 2021 12:50 pm At some resolution, you will got 0 byte
try this picture, u will got 0 byte
https://i.imgur.com/C8a9uYC.png
Re: Multiple HEIC bugs
I only posted results about color errors. For black lines and 0 byte error, you need to use other samples. For convenience I'll post 4h4h270's links below
black lines sample: https://i.imgur.com/46shuMJ.png
0 byte sample: https://i.imgur.com/C8a9uYC.png
my results are as same as No.1, 4 image from 4h4h270's post.
Re: Multiple HEIC bugs
Sorry, but the problem is with MS HEIC plugin, only HEIC loading use XnView plugin
Pierre.
Re: Multiple HEIC bugs
I see. Thanks for your reply. But color errors seems to be a bug of plugin. As I posted before
Saving png as heic, then open them in Xnview 0.98.2 and MS Photo. In Xnview these 2 images are different, but in Photo they look the same. If I use Xnview 0.94, they also look the same
update: I upload these 2 images to my iPhone and they also look different. I use color picker on iphone to get RGB value. It turns out to be the same as Xnview for same image format, and different for same region of 2 images. So it may be another bug of MS HEIC plugin?