Supported types of implemented functions
Note: functions listed here are not necessarily exposed to adapter API layer. See doc/opencv.md for details of the functionality available in OpenCV.
Arithmetic operations
| s8 | u8 | s16 | u16 | s32 | u32 | s64 | u64 | f32 | f64 | u8->f16 |
| Exp | | | | | | | | | x | | |
| Saturating Add | x | x | x | x | x | x | x | x | | | |
| Saturating Sub | x | x | x | x | x | x | x | x | | | |
| Saturating Absdiff | x | x | x | x | x | | | | | | |
| Saturating Multiply | x | x | x | x | x | | | | | | |
| Threshold binary | | x | | | | | | | | | |
| SaturatingAddAbsWithThreshold | | | x | | | | | | | | |
| Scale | | x | | | | | | | x | | x |
| CompareEqual | | x | | | | | | | | | |
| CompareGreater | | x | | | | | | | | | |
| InRange | | x | | | | | | | x | | |
ℹ️ Scale u8->f16 using SVE/SME is significantly faster when alpha and beta are exact float16_t values. \
This can be forced by explicit casting: static_cast<float16_t>(0.3).
Logical operations
Color conversions
| u8 |
| Gray-RGB | x |
| Gray-RGBA | x |
| RGB-BGR | x |
| BGR-RGB | x |
| RGBA-BGRA | x |
| BGRA-RGBA | x |
| YUV420 (planar & semi-planar) - BGR | x |
| YUV420 (planar & semi-planar) - BGRA | x |
| YUV420 (planar & semi-planar) - RGB | x |
| YUV420 (planar & semi-planar) - RGBA | x |
| YUV-BGR | x |
| YUV-RGB | x |
| YUV-BGRA | x |
| YUV-RGBA | x |
| RGB-YUV | x |
| RGBA-YUV | x |
| BGR-YUV | x |
| BGRA-YUV | x |
| RGB-YUV420 (planar & semi-planar) | x |
| RGBA-YUV420 (planar & semi-planar) | x |
| BGR-YUV420 (planar & semi-planar) | x |
| BGRA-YUV420 (planar & semi-planar) | x |
Data type conversions
| u8 | s8 | f32 |
| To float32 | x | x | |
| To uint8 | | | x |
| To int8 | | | x |
Aggregate operations
| s8 | u8 | s16 | u16 | s32 | u32 | s64 | f32 |
| Sum | | | | | | | | x |
| Minmax | x | x | x | x | x | | | x |
| Minmax loc | | x | | | | | | |
| Count non-zeros | | x | | | | | | |
Matrix transformation functions
| 8-bit | 16-bit | 32-bit | 64-bit |
| Merge | x | x | x | x |
| Split | x | x | x | x |
| Transpose | x | x | x | x |
| Rotate (90 degrees clockwise) | x | x | x | x |
Image filters
| s8 | u8 | s16 | u16 | s32 | u32 | f32 |
| Erode | | x | | | | | |
| Dilate | | x | | | | | |
| Sobel (3x3) | | x | | | | | |
| Separable Filter 2D (5x5) | | x | x | x | | | |
| Gaussian Blur (3x3, 5x5, 7x7, 15x15, 21x21) | | x | | | | | |
| Gaussian Blur any kernel size, Replicated Borders | | x | | | | | |
| Median Blur (3x3, 5x5, 7x7) | x | x | x | x | x | x | x |
| Median Blur (generic imp, max size 255x255) | | x | | | | | |
Resize to quarter
Resize with linear interpolation
| u8 | f32 |
| 2x2 | x | x |
| 4x4 | x | x |
| 8x8 | | x |
Remap
| 1ch u8 | 1ch u16 | 2ch u8 | 2ch u16 | 4ch u8 | 4ch u16 |
| Remap int16 coordinates | x | x | | | | |
| Remap int16+uint16 fixed-point coordinates | x | x | | | x | x |
| Remap float32 coordinates - nearest interpolation | x | x | x | x | | |
| Remap float32 coordinates - linear interpolation | x | x | x | x | | |
WarpPerspective
| u8 |
| Nearest neighbour | x |
| Linear interpolation | x |
