I have noticed that the quality of the images produced by the 
JPEGEncoder does not match that of other encoders available (i.e. 
php's built in image compression functions from the gd library)

Any explanation ? or hints/workarounds for improving the quality of 
compressed images by JPEGEncoder ??

Please have a look at the following samples:

original image:
http://img212.imageshack.us/img212/5930/67624460qh5.jpg
Size: 110KB

Image encoded with JPEGAsync (same effect with JPEGEncoder):
http://img136.imageshack.us/img136/3554/77570198qp0.jpg
Size:46.7KB

Image encoded with Php's built-in functions (gd library):
http://img382.imageshack.us/img382/7751/1492if8.jpg
Size:33.4KB
Much smoother than the JPEGAsyncencoder and JPEGEncoder version.. and 
smaller too 


Any hints ? or workarounds to improve the quality of the encoded 
images ? 



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