Sunday, January 6, 2008

Image Server 9.2 - Imagery resolution

I then changed the parameter to PNG24 and then compared the size of the file that is
created and then sent to the client. To my surprise, the results really affect the
performance of the application. For example, with PNG8 the file size is ~150KB, but
with PNG24 it can be up to ~750KB.

When you include the fact that it might be loading more than one image by more than one
user, performance can be even more critical! There are other factors, like the
available bandwidth.

One last test was about using JPEG as the image format. JPEG is really similar to JPG8
when talking about the image size. Therefore, you should be careful when choosing the
Image Format.

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