Labels:book | bulletin board | crt screen | poster | reckoner | sky OCR: TIFF 5.0 Aprendices The "characters" that make up the MZI strings are byts conaining mcompressed (Compression=1) image data, in our implementation. For example. if BitsPerSample is 4 each 8-bit LZW charactet will contain two 1.bit pixels If BitsPerSample ir 16 each 16-bit pixel will span two 8-bit characters (It is also possible to implement : version i Df LZW where the LZW characier depth equals BitsPerSample as was Draft 2 of Revision 50 But there sa major problem with this approach. rSample greater than we can not use 12-bit-aximul codes that the resulting LZW table is unacceptably targe Fortunatcly due to the adaptive nature ofLZw we do not py significant compression ratio penalty for combining several pixels into one byte before compressing. For example, our 4-bit sample images compre ...
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