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| English | Russian |
| red/black tree | красно-чёрное дерево (A binary search tree which uses a one-bit flag on each node to identify the node by color: either red or black. A set of constraints on node color helps form an approximately balanced binary tree) |
| red/black tree | красно-черное дерево |
| Red filter | красный фильтр (A filter that is used in B&W photography. Increases contrast more than any other filter) |
| red gain | усиление красного (The factor by which the red pixel value has to be multiplied to achieve R=G=B values) |
| red, green, blue, alpha | модель RGBA (A model that augments the red, green, blue (RGB) method of combining colors in light-based media, with a fourth color component, alpha, which is used to control color blending. In Open GL, an alpha value of 1.0 corresponds to complete opacity and a value of 0.0 corresponds to complete transparency) |