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| JPEG (Joint Photographic Experts Group) |  |
Expert Image Compression: Processing: In the second step of an image compression process, a transformation is applied to the prepared data. Image Processing in JPEG: For the decompression of the JPEG coded data the inverse DCT must be applied to get a presentation of the time space. Inverse Image Processing in JPEG: If the DCT and the inverse DCT could be calculated with full precision, it would be possible to reproduce the source pixelexactly. From a theoretical point of view, DCT would be lossless in this case. In practise, precision is restricted and DCT is lossy.
Click on the button below to reach the DCT Applet:
Click on the button below to reach the Inverse DCT applet: