func (vib *VImageBuffer) toC() C.vImage_Buffer {
var cv C.vImage_Buffer
cv.data = unsafe.Pointer(&vib.Data[0])
cv.width = C.vImagePixelCount(vib.Width)
cv.height = C.vImagePixelCount(vib.Height)
cv.rowBytes = C.size_t(vib.RowBytes)
return cv
}
// VImageConvolve_ARGB8888 convolves a region of interest within a source image by an M x N kernel, then divides the pixel values by a divisor.
func VImageConvolve_ARGB8888(src, dst *VImageBuffer, tempBuffer []byte, roiX, roiY int, kernel []int16, kernelHeight, kernelWidth, divisor int, backgroundColor [4]uint8, flags VImageFlag) error {
var tmpBuf unsafe.Pointer
if tempBuffer != nil {
tmpBuf = unsafe.Pointer(&tempBuffer[0])
}
srcC := src.toC()
dstC := dst.toC()
return toError(C.vImageConvolve_ARGB8888(&srcC, &dstC, tmpBuf, C.vImagePixelCount(roiX),
C.vImagePixelCount(roiY), (*C.int16_t)(&kernel[0]), C.uint32_t(kernelHeight),
C.uint32_t(kernelWidth), C.int32_t(divisor), (*C.uint8_t)(&backgroundColor[0]), C.vImage_Flags(flags)))
}
// VImageRichardsonLucyDeConvolve_ARGB8888 sharpens an ARGB8888 image by undoing a previous convolution that blurred the image, such as diffraction effects in a camera lens.
func VImageRichardsonLucyDeConvolve_ARGB8888(src, dst *VImageBuffer, tempBuffer []byte, roiX, roiY int, kernel, kernel2 []int16, kernelHeight, kernelWidth, kernelHeight2, kernelWidth2, divisor, divisor2 int, backgroundColor [4]uint8, iterationCount int, flags VImageFlag) error {
var tmpBuf unsafe.Pointer
if tempBuffer != nil {
tmpBuf = unsafe.Pointer(&tempBuffer[0])
}
var kernel2Ptr *C.int16_t
if kernel2 != nil {
kernel2Ptr = (*C.int16_t)(&kernel2[0])
}
srcC := src.toC()
dstC := dst.toC()
return toError(C.vImageRichardsonLucyDeConvolve_ARGB8888(&srcC, &dstC, tmpBuf, C.vImagePixelCount(roiX),
C.vImagePixelCount(roiY), (*C.int16_t)(&kernel[0]), kernel2Ptr, C.uint32_t(kernelHeight),
C.uint32_t(kernelWidth), C.uint32_t(kernelHeight2), C.uint32_t(kernelWidth2), C.int32_t(divisor),
C.int32_t(divisor2), (*C.uint8_t)(&backgroundColor[0]), C.uint32_t(iterationCount), C.vImage_Flags(flags)))
}