Converting a byte array to PNG JPG

Question

I am currently working on an application that requires high-performance conversion of an unpadded byte array to either a PNG or JPEG  The image format doesn t matter  just as long as it s fast   I have tried the  NET libraries and the performance is very bad  Can anyone recommend a good freeware library for this   EDIT  the byte   is an 8bit grayscale bitmap

User · Answer

I like Imagemagick  http   www imagemagick org script api php

User · Answer

There are two problems with this question   Assuming you have a gray scale bitmap  you have two factors to consider    For JPGS    what loss of quality is tolerable  For pngs    what level of compression is tolerable    Although for most things I ve seen  you don t have that much of a choice  so this choice might be negligible    For anybody thinking this question doesn t make sense  yes  you can change the amount of compression number of passes attempted to compress  check out either Ifranview or some of it s plugins    Answer those questions  and then you might be able to find your original answer

User · Answer

You should be able to do something like this   byte   bitmap   GetYourImage     using Image image   Image FromStream new MemoryStream bitmap          image Save  output jpg   ImageFormat Jpeg       Or Png     Look here for more info   Hopefully this helps

[c#] Converting a byte array to PNG/JPG

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