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robaho / seashore

easy to use mac osx image editing application for the rest of us
GNU General Public License v2.0
447 stars 20 forks source link

Weird gray outline in PNG images with transparency #76

Closed lfom closed 7 months ago

lfom commented 5 years ago

First, thank you for this nice app, I have been using for a long time, long before it was in the App Store. I don't use it very often, but recently I noticed that there is a weird gray outline in PNGs with transparency that actually does not exist in the original image, but it shown in SeaShore, and it also remains if the image is saved. Please see the attached image of the same PNG opened in Preview and Seashore. I tried removing all files with "seashore" from my Library folder (aka reset settings) but I didn't help. I am running latest SeaShore 2.4.8 on High Sierra 10.13.6 on an iMac 21" 2011.

Regards

Screen Shot 2019-07-29 at 10 04 04

robaho commented 5 years ago

Can you please attach the original png image file? Thanks.

robaho commented 5 years ago

@lfom The image file is very important, because In reviewing the photos, I think it may just be the transparency on top of the 'selected color'. With the original png file I will be able to determine for certain.

Additionally, because if you look at the 'layer preview', I can't discern any 'gray shadow'. I'm not saying a problem doesn't exist, but without the source image it will be hard to ascertain.

lfom commented 5 years ago

Sure, no problem! Feel free to ask any more info. Thanks.

sunrise

robaho commented 5 years ago

I have been able to reproduce. Thank you for reporting this - it is a serious problem.

robaho commented 5 years ago

Thanks for reporting this. Fixed in 2.4.9. For maintainers, layers are not pre-multiplied, whiteboard is pre-multiplied.

Chazwick4 commented 7 months ago

Hello, I am having this problem as well. Had to do some digging to find someone else who has. I have version 3.33 running on a Mac M2 Max OS 14.2.1

I don't know what pre-multiplied means.

robaho commented 7 months ago

Hi @Chazwick4 can you post a screenshot or video that demonstrates the issue please?

robaho commented 7 months ago

Thanks for reporting back. If you have an old image with the problem you can attach it here or email it to me and I will ensure it is not a problem opening old images.

Chazwick4 commented 7 months ago

I'm going to make a new post, since it may be a different problem altogether, so you can keep this one closed.