JP2 to DXT5

Convert JP2 to DXT5 (Fast & Free)

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How to convert JP2 to DXT5 ?

  1. Select JP2 files you want to convert, from your computer or drag and drop it on the page.
  2. Press the "Convert" button in order to convert JP2 to DXT5.
  3. When the conversion is completed, click "Download" on the desired converted DXT5 file.

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JP2 to DXT5

Useful information about JP2

Extension: JP2
Name: JPEG 2000 File
Mime Type: image/jp2
Converter: JP2 Converter
Description: JPEG 2000 (JP2) is an image compression standard and coding system. It was developed from 1997 to 2000 by a Joint Photographic Experts Group committee chaired by Touradj Ebrahimi (later the JPEG president), with the intention of superseding their original JPEG standard (created in 1992), which is based on a discrete cosine transform (DCT), with a newly designed, wavelet-based method. The standardized filename extension is .jp2 for ISO/IEC 15444-1 conforming files and .jpx for the extended part-2 specifications, published as ISO/IEC 15444-2. The registered MIME types are defined in RFC 3745. For ISO/IEC 15444-1 it is image/jp2. - Source

Useful information about DXT5

Extension: DXT5
Name: S3 Texture Compression - Dxt5
Mime Type: image/dxt
Converter: DXT5 Converter
Description: The DXT5 format is an alternate RGBA format. As in the DXT3 case, each 4x4 block takes up 128 bits. So it provides the same 4:1 compression as in the DXT3 case. Just as for the DXT3 format, there are two 64-bit chunks of data per block: an RGB chunk compressed as for DXT1 (with the same caveat as for DXT3), and an alpha chunk. Again the second chunk is the color chunk; the first is the alpha. Where DXT3 and DXT5 differ is how the alpha chunk is compressed. DXT5 compresses the alpha using a compression scheme similar to DXT1. The alpha data is stored as 2 8-bit alpha values, alpha0 and alpha1, followed by a 48-bit unsigned integer that describes how to combine these two reference alpha values to achieve the final alpha value. The 48-bit integer is also stored in little-endian order. The 48-bit unsigned integer contains 3-bit codes that describe how to compute the final alpha value. These codes are stored in the identical order as the codes in DXT1; they simply are 3 bits in size rather than 2. - Source