I have tried to change the thumbnail size in the theme under extensions but still get horrible jaggies in my jpegs despite the fact that I have uploaded 300ppi jpegs. Any tips please to get clean images through my site. See attachment.
Attachments
Screen Shot 2020-11-19 at 10.32.42 AM.png (470.91 KiB) Viewed 895 times
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Post the sizes please, because I assume that they have the wrong sizes.
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This is an original file, not a thumb.
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It does. No, they don't look crappier.
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Sorry to hear that.
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after beeing reworked by the less than great OC Image Tools ...
Better read here, what I wrote here about such:
viewtopic.php?f=10&t=221066#p805577
My Github OC Site: https://github.com/IP-CAM
5'200 + FREE OC Extensions, on the World's largest private Github OC Repository Archive Site.
To keep it simple I use square images. These have height:width proportion of 1:1
So I ensure all OC image sizes are in proportion 1:1
To make my images square I photograph products on a white background then put the photo on a square white canvas in Photoshop.
Then generate jpgs in Photoshop with quality setting as low as I can make it without reducing vivsble quality, then upload to OC.
Have done tens of thousands of products like this.
With digital files, ppi is meaningless, what you need to think about is the pixel dimensions of the image e.g. 1000px wide x 600px tall.
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This is a standard 500x500 png - before, sharpened, over sharpened.
I don’t find over-shaperning has enough benefit in thumbnails and often appears a little odd when produced full size.
Attachments
Screen-Shot-2020-11-19-at-14.20.55.png (336.19 KiB) Viewed 702 times
Screen-Shot-2020-11-19-at-14.20.552.png (103.91 KiB) Viewed 702 times
DISCLAIMER:
You should not modify core files .. if you would like to donate a cup of coffee I will write it in a modification for you.
https://www.youtube.com/watch?v=zXIxDoCRc84
This Image has 276 KB
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and it could also be shrinked to 71KB, without loosing much quality, just to mention it ...
That's, why I love xx.PNG's so much !
My Github OC Site: https://github.com/IP-CAM
5'200 + FREE OC Extensions, on the World's largest private Github OC Repository Archive Site.
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