Folder Images are blurry

[melanie_hess]

We have just created a new library of assets in AEM 6.0.  I have uploaded a set of images to act as folder images, but while the images are crisp and clear individually, when they are used as a folder preview, they are blurry.  Any thoughts as to why?  Adjusting the resolution of the image does not seem to make a difference.

[smacdonald2008]

When you referecne these digital assets in an AEM web page - they are clear - correct? 

[melanie_hess]

They are.  Yes.  It is only on the home page that they look blurry.  All renditions look clear.

[Opkar_Gill · Accepted solution]

Hi,

If you inspect the image used for the folder preview, what size is AEM using?

In my instance I see "/content/dam/geometrixx-unlimited.folderthumbnail.jpg?width=240&height=140&ch_ck=1437420668000" 

Some of the OOTB folders also have blurry images, what is the size of your image and it's renditions? Could it be AEM is upscaling an image/rendition?

Regards,

Opkar

[melanie_hess]

I have tried image sizes at 216x216, 450 x 450, and 900 x 900 px. as test cases.  They all look the same on the folder.  They are being downsized, but I can't seem to see what the resolution is of the folder preview image itself.  When the image is opened in an info box, it is perfectly clear at the same size.