0.87 - Batch convert preview show only alpha channel

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yochenhsieh
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Joined: Mon Oct 30, 2017 9:27 am

0.87 - Batch convert preview show only alpha channel

Postby yochenhsieh » Mon Oct 30, 2017 12:36 pm

XnView: MP 0.87 - 64-bit
OS: Windows 7 - 64-bit

Effect: Batch convert preview shows only alpha channel.

The preview window aside batch actions show only alpha channel. Since most batch actions are applied to RGB channels, it's difficult to see the changes. And it's no way to disable alpha channel in batch actions preview.

To reproduce:
1. Browse image files with alpha channel (TGA format).
2. Select some image files.
3. Open Batch convert using Ctrl + U key.
4. Press "Actions" tab near the output tab.
Try some actions, and preview window shows only alpha channel.

Expected behaviour: preview shows RGB by default, or at least able to disable alpha channel.

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xnview
Author of XnView
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Re: 0.87 - Batch convert preview show only alpha channel

Postby xnview » Wed Nov 01, 2017 2:03 pm

i can't reproduce, i have good preview
Pierre.

yochenhsieh
Posts: 6
Joined: Mon Oct 30, 2017 9:27 am

Re: 0.87 - Batch convert preview show only alpha channel

Postby yochenhsieh » Wed Nov 01, 2017 3:02 pm

Please see attachment for reference.

I need to see the RGB channels for comparison, but cannot because of the alpha channel.
(note: the alpha channel must be kept after conversion.)
Attachments
preview.PNG

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xnview
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Re: 0.87 - Batch convert preview show only alpha channel

Postby xnview » Thu Nov 02, 2017 7:46 am

please send me the TGA file
Pierre.

yochenhsieh
Posts: 6
Joined: Mon Oct 30, 2017 9:27 am

Re: 0.87 - Batch convert preview show only alpha channel

Postby yochenhsieh » Thu Nov 02, 2017 12:20 pm

I attached three files for you to test.

please note that the alpha channel must not be changed or removed.
Attachments
cardassian_galor3.tga
(256.02 KiB) Downloaded 3 times
cardassian_galor2.tga
(256.04 KiB) Downloaded 2 times
cardassian_galor1.tga
(256.02 KiB) Downloaded 2 times

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xnview
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Location: France
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Re: 0.87 - Batch convert preview show only alpha channel

Postby xnview » Mon Nov 06, 2017 10:07 am

i don't understand the problem. The image shown is with alpha channel from TGA file, so all is good
Pierre.

yochenhsieh
Posts: 6
Joined: Mon Oct 30, 2017 9:27 am

Re: 0.87 - Batch convert preview show only alpha channel

Postby yochenhsieh » Mon Nov 06, 2017 2:27 pm

All right. If this is "good", is it possible to make the preview not show the alpha channel?

Any switch, options, or something that can toggle alpha channel on and off?


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