No Results
No results found for your search. Please try another term.
Free Sample PGX Files Download
Download free sample PGX files, a simple uncompressed grayscale image format ideal for high-bit-depth image processing and codec testing.
What Is This Tool?
PGX is a straightforward uncompressed grayscale image format that stores raw sample values alongside an ASCII header describing the image dimensions and sample details. It is mainly used as an intermediate or interchange format in high-bit-depth image processing and codec development.
How to Use This Tool?
- Download the sample PGX files to test image codec implementations.
- Use files as temporary storage in image processing pipelines requiring exact pixel preservation.
- Analyze high-bit-depth single-channel sensor or scientific images without compression artifacts.
Key Features
- Supports arbitrary sample bit depths with both signed and unsigned values for precise image data.
- Simple ASCII header combined with raw binary sample storage for easy implementation.
- Uncompressed storage maintains exact pixel data without any loss.
- Compatible with open-source tools commonly used in JPEG 2000 workflows.
Examples
- Testing JPEG 2000 codec reference implementations with standard PGX sample files.
- Processing scientific grayscale images with high dynamic range data.
- Using PGX files as intermediate data in custom image processing workflows that require precise sample values.
Common Use Cases
- Interchange format during encode/decode testing of image codecs such as JPEG 2000.
- Storing and analyzing single-channel high-bit-depth images from sensors or scientific instruments.
- Temporary file format in image processing pipelines that require exact sample preservation.
Tips & Best Practices
- Use PGX files only for grayscale images as it does not support color channels.
- Be aware that files are uncompressed and may become large; ensure adequate storage space.
- Leverage open-source tools like JasPer or OpenJPEG for working with PGX files in JPEG 2000 workflows.
Limitations
- Supports only single-channel grayscale images, not suitable for multi-channel color images.
- No compression means file sizes can be significantly larger than compressed formats.
- Minimal metadata support; lacks standardized color profiles, EXIF data, or extensive tagging.
Frequently Asked Questions
- What is the primary use of PGX files?
- PGX files are mainly used as an interchange or intermediate format for high-bit-depth image processing and testing image codecs like JPEG 2000.
- Does PGX support color images?
- No, PGX supports only single-channel grayscale images and is not designed for multi-channel color data.
- Are PGX files compressed?
- No, PGX files are stored uncompressed, preserving exact pixel values but resulting in larger file sizes.
Key Terminology
- PGX
- A simple uncompressed grayscale image format that stores raw sample values with an ASCII header.
- Uncompressed Storage
- File storage method that preserves exact pixel data without applying lossy compression.
- Bit Depth
- The number of bits used to represent each pixel's grayscale value in an image.