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Introduction
- PhoA for a designer
- PhoA for a digicam owner
- PhoA for any PC user
How it looks
How it works
Supported formats
Thumbnails
Major modes
Advantages
Requirements
PhoA internationalization
Revision history
Awards
License Agreement
FAQ
 Download PhoA
  
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As was mentioned above, PhoA program works with photo album files having .phoa extension - such file holds:
- photo album description text and settings;
- picture list along with their descriptions;
- folders-groups hierarchy, each holding a set of links to photo album images;
- view structures (PhoA version 1.0.1+).
.phoa files cannot be viewed directly and are opened only in PhoA.
The supported image file extension index:
Current version recognizes the following formats as source image files:
Standard Windows and OS/2 bitmap images (*.bmp, *.rle, *.dib; Paint Shop Pro masks: *.msk)
- byte order: little endian
- sample sizes: 1, 4, 8 bits per sample
- color spaces: indexed, RGB(A)
- compression formats: uncompressed, RLE
Windows metafiles (*.wmf, *.emf)
Windows icons (*.ico)
Encapsulated PostScript images (*.eps)
JPEG images (*.jfif, *.jpg, *.jpeg, *.jpe)
- byte orders: little endian, big endian
- sample sizes: 8 bits per sample
- color spaces: grayscale, RGB
TIFF images (*.tif, *.tiff)
- 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
Adobe Digital Negative images (*.dng)
- 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)
- 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)
- byte order: little endian
- sample size: 8 bits per sample
- color spaces: indexed
- compression format: uncompressed
Truevision Targa images (*.tga, *.vst, *.icb, *.vda, *.win)
- 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: grayscale, 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, grayscale, RGB
- 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:
Dr. Halo images (*.cut, *.pal)
- byte order: little endian
- sample size: 8 bits per sample
- color spaces: indexed
- compression formats: RLE
- specials:
- external palette file (*.pal) is automatically loaded
CompuServe GIF images (*.gif)
- byte order: little endian
- sample sizes: 1, 4, 8 bits per sample
- color spaces: indexed
- compression format: LZW
- specials:
- interlaced, non-interlaced
Alias/Wavefront images (*.rla, *.rpf)
- byte order: big endian
- sample size: 8 bits per sample
- color space: RGB(A)
- compression formats: RLE
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:
Paint Shop Pro images (*.psp, *.pfr, *.tub)
- 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
Arts & Letters thumbbnail images (*.ged)
The powerful image format support is implemented thanks to Mike Lischke.
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