Bloom Effect

This free online tool allows you to apply bloom effect to images.

Bloom effect is a visual post-processing effect where bright areas appear to "glow" and bleed light into surrounding areas. This effect allows you to create a soft, dreamlike glow or halo of light that bleeds from bright areas into darker regions of an image.

Adding a bloom effect to your images is a great way to introduce soft, dreamy, and cinematic highlights without needing professional editing software. It is particularly effective for night scenes, neon lights, and portraits.

Drop your image here

How to apply bloom effect to an image?

You can easily create bloom effect by following these steps:

  1. Upload the photo that you want. The image will load in the canvas with some default bloom parameters applied.
  2. Choose the bloom intensity, blur radius and threshold. The image will be automatically updated with the chosen parameters.
  3. Click button "Download image".

Options

FieldDescription
Bloom intensityThe intensity of the bloom.
Blur radiusThe radius of the blur, in pixels.
ThresholdThe brightness level that determines which pixels are allowed to glow. Must be a number between 0 and 255, where 0 means all pixels will glow and 255 means no pixel will glow.
Brightness calculation method How the brightness of each pixel is calculated, when checking if the brightness is above or below the threshold.
MethodDescription
Relative LuminancePhysically accurate brightness measurement. Corresponds roughly to human eye sensitivity. Uses the formula: 0.2126 * R + 0.7152 * G + 0.0722 * B.
HSV Value (Maximum Channel)Uses the formula max(R, G, B).

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