Dynapik offers a free online tool to change image types - no need to download anything. It's quick and easy to use. You can change your RAF images to ICB format. This tool works for both professionals and casual users. Convert your images to ICB in seconds.
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Fujifilm RAW
The unique raw format for Fujifilm's X-Trans sensors.
RAF is the raw image format used by Fujifilm cameras. While it serves the same purpose as other raw formats, RAF files from Fuji's X-Series cameras are special because they contain data from the unique 'X-Trans' sensor array. Unlike standard sensors that use a Bayer pattern (2x2 grid), X-Trans uses a complex 6x6 pixel grid to reduce moiré without an optical low-pass filter. This means RAF files require specialized demosaicing algorithms to process correctly, making software choice more critical for Fuji users than for any other brand.
RAF files store the raw sensor data, a JPEG preview, and metadata. Fuji offers 'Uncompressed' and 'Lossless Compressed' options. The Lossless Compressed option is highly efficient, reducing file sizes significantly with no penalty. Because of the X-Trans pattern, RAF files can sometimes exhibit 'worm' artifacts when sharpened aggressively in Adobe Lightroom. This has led many Fuji users to prefer Capture One or Iridient Developer, which handle the X-Trans demosaicing better.
Fuji has used the RAF extension for decades, from their early FinePix DSLRs to the modern GFX medium format monsters. The format gained prominence with the release of the X-Pro1 in 2012, which introduced the X-Trans sensor.
Targa ICB
A legacy extension for Targa images created by Truevision ICB boards.
The ICB file extension is functionally identical to the standard TGA (Truevision Targa) format. It was specifically used to denote images created by or for the Truevision Image Capture Board (ICB). Like standard TGA files, it supports simpler raster data with optional RLE compression and alpha transparency.
An ICB file respects the TGA 2.0 specification. It contains a header defining image dimensions and pixel depth, followed by pixel data. The pixel data can be uncompressed or RLE-compressed. It supports bit depths of 8, 16, 24, and 32 bits. In 32-bit mode, 8 bits are dedicated to an alpha channel, which was a pioneering feature for video overlay graphics.
Truevision (now part of Avid) introduced the Targa video boards for IBM PC-compatibles in the 1980s. To distinguish files created by different hardware models, they used specific extensions: .tga (generic), .icb (Image Capture Board), .vda (Video Display Adapter), and .vst (Video Super TarGA). Modern software treats them all as standard TGA files.
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