Oracle8i Visual Information Retrieval User's Guide and Reference
Release 8.1.5
A67293-01

A
File and Compression Formats

A.1 Supported File and Compression Formats

The following tables describe the file and compression formats supported by Visual Information Retrieval.

To use these tables, find the data format in which you are interested, and then determine the supported formats. For example, Table A-1 shows that Visual Information Retrieval supports BMP format in monochrome, for read and write access, and in 32-bit RGB for read access.

Table A-1 BMP Data Format

Format	Pixel Format	Support
BMP File Format: `BMPF' File Ext: .bmp Mime: image/bmp	Monochrome 4-bit LUT 8-bit LUT 16-bit RGB 24-bit RGB 32-bit RGB	Read/Write Read Read/Write Read Read/Write Read
	Compression Format	Support
Choose one of these compression formats:	Uncompressed BMPRLE (for 8-bit LUT)	Read/Write Read/Write
	Data Description	Support
Choose one or more of these content formats:	Inverse DIB OS/2 format	Read Read

Table A-2 CALS Raster Data Format

Format	Pixel Format	Support
CALS Raster File Format: `CALS' File Ext: .cal Mime: image/x-ora-cals	Monochrome	Read/Write
	Compression Format	Support
	FAX4 (CCITT G4)	Read/Write
	Data Description	Support
	NA	NA

Table A-3 GIF Data Format

Format	Pixel Format	Support
GIF File Format: `GIFF' File Ext: .gif Mime: image/gif NOTE: interMedia image has limited support for animated GIF images; there is setProperties( ) support; however, processing using the process( ) and processCopy( ) (or Analyze) methods is not supported.	Monochrome 8-bit LUT	Read Read/Write
	Compression Format	Support
	GIFLZW (LZW)	Read/Write
	Data Description	Support
	NA	NA

Table A-4 JFIF Data Format

Format	Pixel Format	Support
JFIF File Format: `JFIF' File Ext: .jpg Mime: image/jpeg	8-bit grayscale 24-bit RGB	Read/Write Read/Write
	Compression	Support
	JPEG	Read/Write
	Data Description	Support
	NA	NA

Table A-5 PCX Data Format

Format	Pixel Format	Support
PCX v 5 File Format: `PCXF' File Ext: .pcx Mime: image/x-ora-pcxf	Monochrome 2-bit LUT 4-bit LUT 8-bit LUT 1-bit RGB 2-bit RGB 4-bit RGB 8-bit RGB 24-bit RGB	Read Read Read Read Read Read Read Read Read
	Compression Format	Support
	RLE	Read
	Data Description	Support
	NA	NA

Table A-6 PICT Data Format

Format	Pixel Format	Support
PICT v. 1 & 2 File Format: `PICT' File Ext: .pct Mime: image/pict	Monochrome 2-bit LUT 4-bit LUT 8-bit LUT 16-bit RGB 24-bit RGB	Read/Write Read Read Read/Write Read Read/Write
	Compression Format	Support
Choose one of these compression formats:	Packbits JPEG (8-bit grayscale and RGB)	Read/Write Read/Write
	Data Description	Support
Choose one or more of these content formats:	Vector/object graphics	Not supported

Table A-7 Raw Pixel Data Format

Format	Pixel Format	Support
Raw Pixel File Format: `RPIX' File Ext: .rpx Mime: image/x-ora-rpix	Monochrome 8-bit grayscale 24-bit RGB	Read/Write Read/Write Read/Write
	Compression Format	Support
Choose one of these compression formats:99	Uncompressed FAX3 (CCITT G3) FAX4 (CCITT G4)	Read/Write 8-bit grayscale and RGB Read/Write monochrome only Read/Write monochrome only
	Data Description	Support
	Inverse scanline order Reverse pixel order BIP, BIL, or BSQ interleave Alternative band order >3 bands	Read/Write Read/Write Read/Write Read/Write Read

Table A-8 Sun Raster Data Format

Format	Pixel Format	Support
Sun Raster File Format: `RASF' File Ext: .ras Mime: image/x-ora-rasf	Monochrome 8-bit grayscale 8-bit LUT 24-bit RGB	Read/Write Read/Write Read/Write Read/Write
	Compression Format	Support
Choose one of these compression formats:	Uncompressed SUNRLE (RLE)	Read/Write Read/Write
	Data Description	Support
	NA	NA

Table A-9 Targa Data Format

Format	Pixel Format	Support
Targa File Format: `TGAF' File Ext: .tga Mime: image/x-ora-tgaf	8-bit grayscale 8-bit LUT 16-bit RGB 24-bit RGB 32-bit RGB	Read/Write Read/Write Read Read/Write Read
	Compression Format	Support
Choose one of these compression formats:	Uncompressed TARGARLE (RLE)	Read/Write Read/Write
	Data Description	Support
	NA	NA

Table A-10 TIFF Data Format

Format	Pixel Format	Support
TIFF v.4/5/6 File Format: `TIFF' File Ext: .tif Mime: image/tiff	Monochrome 8-bit grayscale 4 bit LUT 8-bit LUT 24-bit RGB	Read/Write Read/Write Read Read/Write Read/Write
	Compression Format	Support
Choose one of these compression formats:	Uncompressed Packbits Huffman FAX3 (CCITT G3) FAX4 (CCITT G4) LZW LZWHDIFF JPEG (8-bit gray & RGB)	Read/Write Read/Write Read/Write Read/Write Read/Write Read/Write Read/Write Read/Write
	Data Description	Support
Choose one or more of these content formats:	Planar data Tiled data Photometric interpretation MSB/LSB	Not supported Not supported Read/Write Read/Write

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