Greyscale jpg opening as alpha channel only

[Ivgoneriding]

I am trying to open a digital radiograph image, which is greyscale and i only see the alpha channel. If I select primary channel only, I see a black square with nothing else in it: Image should look like this:

This is a brand new install of Seashore. I have tried with a png of the same file, with the same results.

[robaho]

Can you attach the image to this issue. I think you can protect it if need be or send it to me directly.

[robaho]

I say this because I think the image in the original comment may be a screenshot? If it is the actual image just let me know.

[Ivgoneriding]

The image is a screenshot. I'll try adding it later. I don't have my github password to hand.

-------- Original Message -------- From: robert engels notifications@github.com Sent: Thu Apr 04 21:07:13 GMT+01:00 2019 To: robaho/seashore seashore@noreply.github.com Cc: Ivgoneriding seashore@ivegoneriding.co.uk, Author author@noreply.github.com Subject: Re: [robaho/seashore] Greyscale jpg opening as alpha channel only (#47)

I say this because I think the image in the original comment may be a screenshot? If it is the actual image just let me know.

-- You are receiving this because you authored the thread. Reply to this email directly or view it on GitHub: https://github.com/robaho/seashore/issues/47#issuecomment-480044322

[Ivgoneriding]

Original image

[robaho]

Great. That should be fine.

On Apr 4, 2019, at 4:04 PM, Ivgoneriding notifications@github.com wrote:

Original image

— You are receiving this because you commented. Reply to this email directly, view it on GitHub, or mute the thread.

[robaho]

That image opens fine for me. Can you try downloading it from here, and see if it opens for you ? It may be that github corrected it when attaching. You can try sending the image to me directly at robaho@me.com

[Ivgoneriding]

I get the same issue when downloading the file from here: I have emailed you the original file.

[robaho]

Hmm. It is working fine for me. I am going to ask others to open it - also if the community could try opening this image

and report back with OS version, etc. and if it failed or not, that would be helpful.

[Ivgoneriding]

Thanks.

-------- Original Message -------- From: robert engels notifications@github.com Sent: Sat Apr 06 16:22:33 GMT+01:00 2019 To: robaho/seashore seashore@noreply.github.com Cc: Ivgoneriding seashore@ivegoneriding.co.uk, Author author@noreply.github.com Subject: Re: [robaho/seashore] Greyscale jpg opening as alpha channel only (#47)

Hmm. It is working fine for me. I am going to ask others to open it - also if the community could try opening this image

and report back with OS version, etc. and if it failed or not, that would be helpful.

-- You are receiving this because you authored the thread. Reply to this email directly or view it on GitHub: https://github.com/robaho/seashore/issues/47#issuecomment-480512562

[SimplyTheOther]

I can open it successfully from both inside Seashore and from Finder. The image appears to look exactly the same as it does on Github.

I am using Seashore Version 2.4.0 (201902170) from the App Store and macOS Mojave 10.14.4.

[robaho]

@Ivgoneriding I’m beginning to think this is a problem specific to your setup. Do you know how to use ‘Console’ to inspect the logs? Maybe have that open while you try to open the image and see if it reports anything interesting? It could be that I broke something so that it doesn’t work on 10.11 and I am reviewing the code for that as well. Still trying...

[robaho]

@Ivgoneriding I've been able to duplicate the issue - it seems older versions of OSX cannot work with grayscale with alpha channels.

Which version of OSX are you using ?

[robaho]

@Ivgoneriding this is fixed in version 2.4.2 - it is available here in 'releases' and will be in the App Store soon