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The black borders are required in order to optimize performance and the number of rows translates to the resolution for the green channel, the number of columns translates to the resolution of the red channel and the number of tiles translates to the blue channels resolution. We recommend starting with the smallest possible LUT file and falling back to larger files, if you notice that your filter can’t be fully reproduced: Using a smaller LUT file may lead to issues when applying your filter, as our processing engine needs to interpolate missing values.

When you create your own filters you must name your assets accordingly. The ending 8_8_512 tells the SDK that the LUT image contains 8 times 8 tiles, and has a resolution of 512 pixel. The end of the assets name, holds information about structure of the data it contains.

256x256 LUT with 6 columns and 6 rows ( download).256x256 LUT with 7 columns and 7 rows ( download).512x512 LUT with 8 columns and 8 rows (default) ( download).Starting with version 7.0, we support lower resolution LUT files in order to further reduce your app's deployment size and speed up live filters and filter previews. We 'record' that very response by applying the filter to the identity image shown below. The main idea is that colors respond to operations that are carried out during the filtering process. We use a technology called LUTs in order to add new filters to our SDK.