Image processor wishlist

[milasudril]

• [x] Rgba to grayscale

• Input: RgbaValue

• Ouptut: RealValue grayscale, RealValue alpha

• Params: Channel weights for R, G, and B

• [x] Split image spectrum (Magnitude + Phase)

• [ ] Rgba DFT Forward (Combines a Rgba Split node, followed by four DFT Forward nodes)

• Input: RgbaValue

• Output: 4 times Complex Value

• [ ] Rgba DFT Backward (Combines four DFT Backward nodes, followed by one Rgba Combine node)

• Input: RgbaValue

• Output: 4 times Complex Value

• [x] Surface normal

• Input: RealValue

• Output: vec4_t

• [x] Soft clamp

• Input: RealValue

• Output: RealValue

• Params: Min, Max

• [x] Wave

• Input: RealValue

• Output: RealValue

• [x] Spot detector

• Input: RealValue

• Output: Points [new type] Note: replaced by "Random point cloud"

• [x] Make linear gradiant

• Output: grayscale image

• Parameters: Similar to "Make radial gradient"

• [ ] Make point regular point cloud

• [ ] Voronoi

• Input: Coordinates

• Output: RealValue

• [x] Cracks

• Input: Coordinates

• Output: RealValue

• [x] Checker board

• Output: RealValue grayscale

• Params: size

• [x] Gingham

• Output: RealValue grayscale, RealValue alpha

• [x] RGBA versions of normalization nodes

• [x] Posterization

• Input: *Image

• Output: *Image

• Params: Steps, (Lin and Log)

• [x] ~Median filter with adjustable percentile~ Slow in HDR pipeline

• [x] Grayscale sqrt distortion. Can be emulated with power distortion, but sqrt is sufficiently common to have a dedicated node.