Convert XPM Images to PGX Online

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 XPM images to PGX format. This tool works for both professionals and casual users. Convert your images to PGX in seconds.

Possible Conversions

About XPM Format

X PixMap

Color icons written as text.

Overview

XPM (X PixMap) is the usage successor to XBM. It allows for color images (and transparency) to be stored as C source code arrays. It was the standard format for icons in the Common Desktop Environment (CDE) and many Unix window managers.

Technical Details

An XPM file is valid C code defining a character array: `static char * icon[] = { ... }`. The data defines a color palette (mapping characters like '.' or '#' to hex colors) and then draws the image using those characters. This makes it human-readable and editable in a text editor.

History

Developed by Groupe Bull in 1989 to bring color support to X11 icons.

Common Use Cases

  • Application Icons: Embedding a logo into a compiled C++ binary.

Advantages

  • Embeddable
  • Editable

Limitations

  • Size
  • Web Support

Technical Specifications

Extension: .xpmMIME: image/x-xpixmapMax Color: Variable (Indexed)Category: specialized

About PGX Format

JPEG 2000 VM Uncompressed

A single-component test format for JPEG 2000 verification.

Overview

PGX is an extremely simple, uncompressed raster format created specifically for the development and testing of the JPEG 2000 standard (ISO 15444). It is defined in the JPEG 2000 Verification Model (VM). Its purpose is to store a single component (channel) of an image with potentially high bit depth and signed/unsigned values, without the complexity of a full image container.

Technical Details

A PGX file represents one image channel (grayscale). It starts with a minimalist text header identifying the endianness (`LMS` or `Big`), the sign (`+`/`-`), the bit depth, and dimensions. The raw pixel data follows immediately. It is effectively a raw dump of a single image plane.

History

Developed by the JPEG committee during the creation of JPEG 2000. It allowed researchers to test wavelet compression algorithms on raw data without worrying about file headers or color transforms.

Common Use Cases

  • Algorithm Testing: Testing a new wavelet transform implementation.
  • JPEG 2000 Component Separation: Storing the separated Y, U, and V channels of an image before compression.

Advantages

  • Precision

Limitations

  • Grayscale Only
  • Obscure

Technical Specifications

Extension: .pgxMIME: image/x-pgxMax Color: VariableCategory: specialized

Frequently Asked Questions

Is it possible to convert XPM to PGX without losing size online?
Definitely! You can configure quality options for the conversion so that the resulting image is as close to the original as possible.
How long does it take to convert XPM image to PGX file?
The conversion between XPM and PGX is instant without delay.

Why choose Dynapik?

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