John Miano
Compressed Image File Formats
JPEG, PNG, GIF, XBM, BMP
Paperback Engels 1999 1e druk 9780201604436Levertijd ongeveer 9 werkdagen
Gratis verzonden
Specificaties
ISBN13:9780201604436
Taal:Engels
Bindwijze:Paperback
Aantal pagina's:288
Uitgever:Pearson Education
Druk:1
Hoofdrubriek:Grafisch, Computer en informatica
Lezersrecensies
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Inhoudsopgave
Preface.
Acknowledgments.
1. Introduction.
The Representation of Images.
Vector and Bitmap Graphics.
Color Models.
True Color versus Palette.
Compression.
Byte and Bit Ordering.
Color Quantization.
A Common Image Format.
Conclusion.
2. Windows BMP.
Data Ordering.
File Structure.
Compression.
Conclusion.
3. XBM.
File Format.
Reading and Writing XBM Files.
Conclusion.
4. Introduction to JPEG.
JPEG Compression Modes.
What Part of JPEG Will Be Covered in This Book?
What are JPEG Files?
SPIFF File Format.
Byte Ordering.
Sampling Frequency.
JPEG Operation.
Interleaved and Noninterleaved Scans.
Conclusion.
5. JPEG File Format.
Markers.
Compressed Data.
Marker Types.
JFIF Format.
Conclusion.
6. JPEG Human Coding.
Usage Frequencies.
Huffman Coding Example.
Huffman Coding Using Code Lengths.
Huffman Coding in JPEG.
Limiting Code Lengths.
Decoding Huffman Codes.
Conclusion.
7. The Discrete Cosine Transform.
DCT in One Dimension.
DCT in Two Dimensions.
Basic Matrix Operations.
Using the 2-D Forward DCT.
Quantization.
Zigzag Ordering.
Conclusion.
8. Decoding Sequential-Mode JPEG Images.
MCU Dimensions.
Decoding Data Units.
Decoding Example.
Processing DCT Coefficients.
Up-Sampling.
Restart Marker Processing.
Overview of JPEG Decoding.
Conclusion.
9. Creating Sequential JPEG Files.
Compression Parameters.
Output File Structure.
Doing the Encoding.
Down-Sampling.
Interleaving.
Data Unit Encoding.
Huffman Table Generation.
Conclusion.
10. Optimizing the DCT.
Factoring the DCT Matrix.
Scaled Integer Arithmetic.
Merging Quantization and the DCT.
Conclusion.
11. Progressive JPEG.
Component Division in Progressive JPEG.
Processing Progressive JPEG Files.
Processing Progressive Scans.
MCUs in Progressive Scans.
Huffman Tables in Progressive Scans.
Data Unit Decoding.
Preparing to Create Progressive JPEG Files.
Encoding Progressive Scans.
Huffman Coding.
Data Unit Encoding.
Conclusion.
12. GIF.
Byte Ordering.
File Structure.
Interlacing.
Compressed Data Format.
Animated GIF.
Legal Problems.
Uncompressed GIF.
Conclusion.
13. PNG.
History.
Byte Ordering.
File Format.
File Organization.
Color Representation in PNG.
Device-Independent Color.
Gamma.
Interlacing.
Critical Chunks.
Noncritical Chunks.
Conclusion.
14. Decompressing PNG Image Data.
Decompressing the Image Data.
Huffman Coding in Deflate.
Compressed Data Format.
Compressed Data Blocks.
Writing the Decompressed Data to the Image.
Conclusion.
15. Creating PNG Files.
Overview.
Deflate Compression Process.
Huffman Table Generation.
Filtering.
Conclusion.
Glossary.
Bibliography.
Index. 0201604434T04062001
Acknowledgments.
1. Introduction.
The Representation of Images.
Vector and Bitmap Graphics.
Color Models.
True Color versus Palette.
Compression.
Byte and Bit Ordering.
Color Quantization.
A Common Image Format.
Conclusion.
2. Windows BMP.
Data Ordering.
File Structure.
Compression.
Conclusion.
3. XBM.
File Format.
Reading and Writing XBM Files.
Conclusion.
4. Introduction to JPEG.
JPEG Compression Modes.
What Part of JPEG Will Be Covered in This Book?
What are JPEG Files?
SPIFF File Format.
Byte Ordering.
Sampling Frequency.
JPEG Operation.
Interleaved and Noninterleaved Scans.
Conclusion.
5. JPEG File Format.
Markers.
Compressed Data.
Marker Types.
JFIF Format.
Conclusion.
6. JPEG Human Coding.
Usage Frequencies.
Huffman Coding Example.
Huffman Coding Using Code Lengths.
Huffman Coding in JPEG.
Limiting Code Lengths.
Decoding Huffman Codes.
Conclusion.
7. The Discrete Cosine Transform.
DCT in One Dimension.
DCT in Two Dimensions.
Basic Matrix Operations.
Using the 2-D Forward DCT.
Quantization.
Zigzag Ordering.
Conclusion.
8. Decoding Sequential-Mode JPEG Images.
MCU Dimensions.
Decoding Data Units.
Decoding Example.
Processing DCT Coefficients.
Up-Sampling.
Restart Marker Processing.
Overview of JPEG Decoding.
Conclusion.
9. Creating Sequential JPEG Files.
Compression Parameters.
Output File Structure.
Doing the Encoding.
Down-Sampling.
Interleaving.
Data Unit Encoding.
Huffman Table Generation.
Conclusion.
10. Optimizing the DCT.
Factoring the DCT Matrix.
Scaled Integer Arithmetic.
Merging Quantization and the DCT.
Conclusion.
11. Progressive JPEG.
Component Division in Progressive JPEG.
Processing Progressive JPEG Files.
Processing Progressive Scans.
MCUs in Progressive Scans.
Huffman Tables in Progressive Scans.
Data Unit Decoding.
Preparing to Create Progressive JPEG Files.
Encoding Progressive Scans.
Huffman Coding.
Data Unit Encoding.
Conclusion.
12. GIF.
Byte Ordering.
File Structure.
Interlacing.
Compressed Data Format.
Animated GIF.
Legal Problems.
Uncompressed GIF.
Conclusion.
13. PNG.
History.
Byte Ordering.
File Format.
File Organization.
Color Representation in PNG.
Device-Independent Color.
Gamma.
Interlacing.
Critical Chunks.
Noncritical Chunks.
Conclusion.
14. Decompressing PNG Image Data.
Decompressing the Image Data.
Huffman Coding in Deflate.
Compressed Data Format.
Compressed Data Blocks.
Writing the Decompressed Data to the Image.
Conclusion.
15. Creating PNG Files.
Overview.
Deflate Compression Process.
Huffman Table Generation.
Filtering.
Conclusion.
Glossary.
Bibliography.
Index. 0201604434T04062001
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