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  • [BCB6]GraphicEx

    可以支持多种图片格式:

    GraphicEx is open source under the Mozilla Public License (MPL). Please read the license agreement before you start using this library.

    • TIFF images (*.tif; *.tiff), extended base line implementation
      • byte orders: little endian, big endian
      • sample sizes: 1, 2, 4, 8, 16 bits per sample
      • color spaces: indexed, grayscale, RGB(A), CMYK, L*a*b*
      • compression formats: uncompressed, packed bits, LZW, CCITT T.4 (raw and modified fax group 3, possibly word aligned), ThunderScan, Deflate, new style JPEG
    • GFI fax images (*.fax), uses TTIFFGraphic to read
      • sample size: 1 bits per sample
      • color space: indexed
      • compression format: CCITT T.4 (raw and modified fax group 3)
    • SGI images (*.bw, *.rgb, *.rgba, *.sgi)
      • byte order: big endian
      • sample sizes: 1, 2, 4, 8, 16 bits per sample
      • color spaces: indexed, grayscale, RGB(A)
      • compression formats: uncompressed, RLE
    • Autodesk images files (*.cel; *.pic) old style only
      • byte order: little endian
      • sample size: 8 bits per sample
      • color spaces: indexed
      • compression format: uncompressed
    • Truevision images (*.tga; *.vst; *.icb; *.vda; *.win), write support included
      • byte order: little endian
      • sample sizes: 5, 8 bits per sample
      • color spaces: gray scale, indexed, 15 bits RGB (555), 24 bits RGB(A)(888)
      • compression formats: uncompressed, RLE
    • ZSoft Paintbrush images (*.pcx, *.pcc)
      • byte order: little endian
      • sample sizes: 1, 2, 4, 8 bits per sample
      • color spaces: gray scale, indexed, RGB
      • compression formats: uncompressed, RLE
    • Word 5.x screen capture files (*.scr)
      • byte order: little endian
      • sample sizes: 1, 2, 4, 8 bits per sample
      • color spaces: indexed, gray scaleRGB
      • compression formats: uncompressed, RLE
    • Kodak Photo-CD images (*.pcd)
      • byte order: little endian
      • samples size: 8 bits per sample
      • color space: YCbCr
      • compression: PCD Huffmann
      • specials:
        • sizes: all resolutions, from 192 x 128 up to 6144 x 4096 (64 Base vaporware)
        • rotated: clockwise and counter-clockwise
    • Portable pixel/gray map images (*.ppm, *.pgm, *.pbm)
      • byte order: little endian
      • sample sizes: 1, 8 bits per sample
      • color spaces: gray scale, indexed, RGB
      • compression format: uncompressed
      • specials:
        • ASCII and Binary format
    • Dr. Halo images (*.cut, *.pal)
      • byte order: little endian
      • sample size: 8 bits per sample
      • color spaces: indexed
      • compression formats: RLE
      • special:
        • external palette file (*.pal) is automatically loaded when specified while doing LoadFromStream or when loading the image via LoadFromFile
    • CompuServe images (*.gif)
      • byte order: little endian
      • sample sizes: 1, 4, 8 bits per sample
      • color spaces: indexed
      • compression format: LZW
      • special:
        • interlaced, non-interlaced
    • SGI Wavefront images (*.rla, *.rpf)
      • byte order: big endian
      • sample size: 8 bits per sample
      • color space: RGB(A)
      • compression formats: RLE
    • Standard Windows bitmap images (*.bmp, *.rle, *.dib), these formats are natively supported by Delphi's VCL but *.rle and *.dib files are not registered with TPicture by default
      • byte order: little endian
      • sample sizes: 1, 4, 8 bits per sample
      • color spaces: indexed, RGB(A)
      • compression formats: uncompressed, RLE
      • specials:
        • OS/2 bitmap format
    • Photoshop images (*.psd, *.pdd)
      • byte order: big endian
      • sample sizes: 1, 8, 16 bits per sample
      • color spaces: indexed, RGB, CMYK, CIE L*a*b*
      • compression formats: uncompressed, packed bits
      • special:
        • duo tone
    • Paintshop Pro images (*.psp)
      • byte order: little endian
      • sample sizes: 1, 4, 8 bits per sample
      • color spaces: indexed, gray scale, RGB
      • compression formats: uncompressed, LZ77
    • Portable network graphic images (*.png)
      • byte order: big endian
      • sample sizes: 1, 2, 4, 8, 16 bits per sample
      • color spaces: indexed, grayscale (alpha), RGB(A)
      • compression format: LZ77
      • specials:
        • supported chunks: IHDR, IDAT, IEND, PLTE, gAMA, tRNS, bKGD
        • transparency support partially for RGB, which is stored as 32 bits format

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  • 原文地址:https://www.cnblogs.com/s5689412/p/1907635.html
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