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Corrupted images

Nuno Cruz

Feb 04, 2018 06:37AM EST

Hi there, my application just started to randomly create some images corrupted. I didn't change a thing, and haven't had any update in a while.

You can see an example here: https://www.dropbox.com/s/9f9ffyv787ybpv0/Screenshot%202018-02-04%2012.35.27.png?dl=0

I have tried to change php version, to change the image processor, nothing works, I always end up with some corrupted images.

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Team NetObjects Koken Agent

Feb 06, 2018 12:10PM EST

You have the right idea about rebuilding the image cache, however, on a resource limited server clearing the entire image cache may fix one issue but introduce others. To fix an individual pixilated image, find the pixilated images(s) via the web browser. Then log into Koken and find the exact image(s) in the Library. Rotate the image and then rotate it back. This will force the server to re-render that specific image and the pixelation is gone.

Let me try to explain what was happening. A key part of Koken involves image generation and caching. Koken creates images by using image processing software installed on your web server. This process takes your uploaded images and generates smaller versions for use inside Koken and on your public web site. A variety of image sizes are generated for optimum load times across all screen sizes (phones, tablets, desktops, etc). Once smaller versions of images have been cached, those cached versions are re-used for optimum speed and performance. A cached copy of an image is only generated again if you replace its original file with a new version.

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