Test PNG Image
Test your PNG image for transparency distribution, color channel averages, and lightness levels. Free online PNG image a
How to Use Test PNG Image
- Upload PNG: Select a PNG image to analyze its composition.
- View transparency data: See the breakdown of fully transparent, semi-transparent, and opaque pixels.
- Check channel averages: Review the average RGB values and overall lightness of the image.
About Test PNG Image
Test PNG Image analyzes your image for transparency distribution, color channel averages, and overall lightness. Understand the composition of your PNG.
- Transparency Analysis: See the percentage of fully transparent, semi-transparent, and opaque pixels.
- Channel Averages: Get the average Red, Green, and Blue values across the entire image.
- Lightness Measurement: Check the average lightness level of the image on a 0-255 scale.
Useful for understanding the visual characteristics and composition of your PNG images before editing.
Frequently Asked Questions
What does the PNG test measure?
It measures transparency distribution (fully transparent, semi-transparent, opaque), average RGB channel values, and overall image lightness.
How is average lightness calculated?
Lightness is calculated using the standard luminance formula: 0.299×R + 0.587×G + 0.114×B, on a scale of 0 (black) to 255 (white).
What can I learn from channel averages?
Channel averages reveal the overall color bias of an image. For example, high average Red suggests a warm-toned image.