[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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