Blur
Brief Description
Blur the image. The filter can be a Box, Triangle, Quadratic or Gaussian filter. Note that the Gaussian Filter is implemented with a FIR (Finite impulse response), effectively cropping the gaussian impulse response.
Internally, for the blur processing to remain constant regardless of the Size value, the input image may be downscaled before blurring and upscaled in output, whih approximates what the blur would do a much faster speed. The \"Downscale Threshold\" parameter is useful to determine at which size the downscale occurs. Increasing this value increases quality at the cost of processing speed.
Controls
| Parameter / Script Name | Type | Default | Function |
|---|---|---|---|
Enabled / enabled | Boolean | On | |
Red / process_red | Boolean | On | Enable the red channel in output. Otherwise if there's a source the content of the main source is returned instead, else 0 |
Green / process_green | Boolean | On | Enable the green channel in output. Otherwise if there's a source the content of the main source is returned instead, else 0 |
Blue / process_blue | Boolean | On | Enable the blue channel in output. Otherwise if there's a source the content of the main source is returned instead, else 0 |
Alpha / process_alpha | Boolean | On | Enable the alpha channel in output. Otherwise if there's a source the content of the main source is returned instead, else 0 |
Size / size | Float 2D | 0, 0 | Size of the radius of the blur. Higher values produce more blur. |
Bounding Box / rod_mode | Choice | Expand | - Expand - Crop to format - Same as input |
Filter / filter | Choice | Gaussian | - Gaussian - Box - Triangle - Quadratic |
Border / border | Choice | Black | - Repeat - Black - Repeat RGB Black Alpha |
Crop To Composition Format / crop_source_to_comp | Boolean | Off | Useful to increase performances when doing large blurs of the size of the composition if you don't care that the intensities outside the comp get properly blurred. |
Downscale Threshold / downscale_threshold | Float | 15 | When the size of the blur exceeds this threshold, the image is downscaled before blurring and upscaled in output, which approximates what the blur would do a much faster speed. Increasing this value increases quality at the cost of processing speed. |
Mask / mask | Image | - | |
Mix / mix_with_source | Float | 1 | Dissolves between the original image at 0 and the image with the effect applied at 1 |