Imebra is a multiplatform open source Dicom library from Puntoexe written in C++.

Key features:

-multi platform (Windows, Linux, Mac OS X, Pocket PC)
-self contained (the library uses only functions from the standard C library and the standard template library)
-dicom files parser and builder
-jpeg files parser and builder
-image decompression and compression in the following formats: jpeg baseline (8 bits per color channel lossy), jpeg baseline extended (12 bits per color channel lossy), jpeg lossless (up to 16 bits per color channel lossless), raw dicom (up to 16 bits per color channel lossless), rle dicom (up to 16 bits per color channel lossless)
-color space conversion
-support for nested datasets (sequences)
-support for Unicode and different Dicom charsets
-support for transactions