RGB

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How to use

The RGB transformation allows you to adjust the amount of color in each of the Red, Green, and Blue channels independently. This gives you fine-grained control over the color balance of your image.

Pass the following query param rgb=r,g,b to the API endpoint, where r, g, and b are percentage values for each channel.

For example: rgb=50,-30,20

Valid values for each channel range from -100 to 100. The default value is 0 for each channel, which leaves the image unchanged.

• Positive values increase the intensity of the color channel.
• Negative values decrease the intensity of the color channel.
• A value of 0 leaves the channel unchanged.

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Effect of RGB Adjustment

• Red channel: Affects the amount of red in the image. Positive values make reds more vibrant, while negative values reduce red tones.
• Green channel: Controls the green tones. Positive values enhance green hues, while negative values diminish them.
• Blue channel: Influences blue colors. Positive values intensify blues, while negative values subdue them.

This transformation can be used to correct color casts, create artistic effects, or fine-tune the color balance of your images.

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Original Image

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Image with RGB adjustment

In this example, we’ve increased the red channel by 50%, decreased the green channel by 30%, and increased the blue channel by 20%. This results in a warmer, slightly more vibrant image with reduced green tones.

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Best Practices

• Use small increments (e.g., -10 to 10) for subtle adjustments.
• Experiment with different combinations to achieve the desired color balance.
• Remember that extreme values may lead to color distortion or loss of detail in certain areas of the image.