Hi,

The Store module already use the highest quality available in GDI+ (HighQualityBicubic). May be it's related to the color palette in your imagges? Did you try with a web safe palette?

Gilles

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Hi,

You'r right about encoders, but this sample works with jpeg format. The Quality refer to the compression level using a long value between 0 and 100. I'm not sure than bmp file format authorize a compression setting, because this format is not compressed. The Store module allow to use all file formats supported by GDI+ (BMP, GIF, PNG, TIFF, ...). For a better image quality, you should use PNG-8 if you need transparency with IE 6 or PNG-24. This format do not degrade the source image, while jpeg degrade quality because the compression algorythm used. I can't force users to use only jpeg file format because some of them need transparency support. Moreover, some encoder steeings can cosume more cpu. I have to think about performances because it"sdifficult to use caching method in this case. Remember than thumbnails are resized 'on the fly' each times the image is called. If your Store Catalog module display 50 images at a time, then the thumbnail.aspx page will be called 50 times!

On the other hand, I could add a 'Quality' setting, but if I do it for jpeg I have to do it for each file format and each supported values! Is it really a requirement to make things harder if you could just use another file format? :-) Image optimization is detailed in the Templating Guide (chapter 5).

Gilles

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We (team members) are Humans offering their knowledge, their work and their spare time FOR FREE to benefit the community. It would be so particularly appreciated that your messages begin with "Hello" and end with "Thank you" or any other form of politeness. Ask yourself what your reaction would be, if you were approached by me (a total stranger) on the street to ask you something without saying "Hello" nor "Thank you"? After several years of services dedicated to the community, I begin to be tired to read requests without any form of politeness.