Changing image quality of existing CMS images

[Sarthak Sharma]

Hi,

I had created a image set service to cut different size variants of images.

After uploading hundreds of images, I realized after some time that I need to compress images and I changed the compression setting to 0.8.

So, It works when I upload any new image.but the problem is that: those images are already referring a lot of documents in the CMS (and I guess, CMS uses uuid to attach images and not image name)

Now, If I re upload existing images with different names (for example re uploading alpha.jpg to alpha_new.jpg), then I'll have to reattach them to documents.

This whole process can be time taking and error prone.

So, Is there a simple way so that I can apply those optimization settings of image to existing images in CMS?

[woonsan.ko]

Hi Sarthak,

Sorry for late response.

I think it should be the safest way to re-upload those images with the new setting for the following reasons:

- Images are pre-generated in repository anyway on upload. So the image processing should be done anyway however long it takes.

- New image binary node name is better as the old image URLs are cached in client browsers.

To avoid errors, I assume you could have done this:

- Upload a new image for the old image with a rule. e.g, "image1" vs "image1_new" or "old/image1" vs "new/image1".

- Find all the hippo:mirror node having @hippo:docbase is the same as the UUID of the old image handle node.

- Update the @hippo:docbase property by setting it to the UUID of the new image handle node.

- Delete the old image handle.

Regards,

Woonsan

[Jeroen Hoffman]

Hi,

The alternative is to regenerate your image sets using the Groovy script that is embedded in the essentials Gallery Manager, at

https://code.onehippo.org/cms-community/hippo-essentials/blob/hippo-essentials-4.2.0-1/plugins/gallery-manager/src/main/resources/ImageSetUpdater.groovy

HTH
Jeroen

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