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Comparison of image compression algorithms ECE-533 Paula Aguilera.

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Presentation on theme: "Comparison of image compression algorithms ECE-533 Paula Aguilera."— Presentation transcript:

1 Comparison of image compression algorithms ECE-533 Paula Aguilera

2 Five Different Formats FORMATNAMECHARACTERISTICS BMPWindows bitmapUncompressed format TIFFTagged Image File Format Lossless: Document scanning and imaging format. Flexible: LZW, CCITT, RLE. PNGPortable Network Graphics Lossless: improve and replace GIF, superior to TIFF JPEGJoint Photographic Experts Group Lossy: big compression ratio, good for photographic images JPEG 2000Joint Photographic Experts Group 2000 Lossy: eventual replacement for JPEG

3 Lossless (24 bit color) BMP 696 KB TIFF-LZW 378KB PNG 258KB JPEG 43,3KB

4 Lossless(8 bit color) BMP 257 KBTIFF LWZ 251KB PNG 173 KBJPEG 79 KB

5 Text compression: BMP 1,07MB TIFF CCITT4 50,9KB PNG 97,1KB JPEG 1M

6 JPEG Quality 100 334KB Quality 50 49,5KB Quality 10 16,3KB Quality 1 6,3KB

7 JPEG: Decreasing of the size

8 JPEG 2000 JPEG 2000 6,3KB JPEG 6,3KB

9 JPEG 2000 JPEG 148KB JPEG 2000 148KB

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