public void applyModification(ushort[] image, iPoint2D dim, iPoint2D offset, int colorDepth)
{
maxValue = (uint)(1 << colorDepth);
if (!cameraWB)
{
mul = new float[4];
//Balance.calculateRGB((int)temperature, out mul[0], out mul[1], out mul[2]);
mul[0] = (float)(255 / temperature);
mul[1] = (float)(255 / tint);
mul[2] = 1;
}
//generate the curve
double[] xCurve = new double[5], yCurve = new double[5];
//mid point
xCurve[2] = maxValue / 2;
yCurve[2] = maxValue / 2;
//shadow
xCurve[0] = 0;
yCurve[0] = shadow * (maxValue / (400));
//hightlight
xCurve[4] = maxValue;
yCurve[4] = maxValue - (hightlight * (maxValue / 400));
//contrast
xCurve[1] = maxValue / 4;
yCurve[1] = ((yCurve[0] + yCurve[2]) / 2) - (maxValue / 200);
xCurve[3] = maxValue * 3 / 4;
yCurve[3] = ((yCurve[2] + yCurve[4]) / 2) + (maxValue / 200);
maxValue--;
//interpolate with spline
//double[] contrastCurve = Balance.contrast_curve(shadow, hightlight, 1 << colorDepth);
double[] contrastCurve = Curve.cubicSpline(xCurve, yCurve);
//Change the gamma/No more gammaneeded here, the raw should be transformed to neutral gamma before demos
//double[] gammaCurve = Balance.gamma_curve(0.45, 4.5, 2, 8192 << 3);
//gammacurve from camera
//double[] gammaCurve = Balance.gamma_curve(camCurve[0] / 100, camCurve[1] / 10, 2, 8192 << 3);
Parallel.For(offset.y, dim.y, y =>
{
int realY = y * dim.x * 3;
for (int x = offset.x; x < dim.x; x++)
{
int realPix = realY + (3 * x);
//get the RGB value
double red = image[realPix],
green = image[realPix + 1],
blue = image[realPix + 2];
//convert to linear rgb (not needed, the raw should be in linear already)
/*Balance.sRGBToRGB(ref red, maxValue - 1);
* Balance.sRGBToRGB(ref green, maxValue - 1);
* Balance.sRGBToRGB(ref blue, maxValue - 1);*/
//scale according to the white balance
//Balance.scaleColor(ref red, ref green, ref blue, mul);
red *= mul[0];
green *= mul[1];
blue *= mul[2];
//clip
Luminance.Clip(ref red, ref green, ref blue, maxValue);
double h = 0, s = 0, l = 0;
//transform to HSL value
Color.rgbToHsl(red, green, blue, maxValue, ref h, ref s, ref l);
//change brightness from curve
//add saturation
l = contrastCurve[(uint)(l * maxValue)] / maxValue;
s *= saturation;
s += vibrance;
l *= exposure;
l += brightness / 100;
//change back to RGB
Color.hslToRgb(h, s, l, maxValue, ref red, ref green, ref blue);
//Luminance.Exposure(ref red, ref green, ref blue, exposure);
//Luminance.Brightness(ref red, ref green, ref blue, brightness);
//Balance.scaleGamma(ref red, ref green, ref blue, gamma, maxValue);
Luminance.Contraste(ref red, ref green, ref blue, maxValue, contrast);
//clip
Luminance.Clip(ref red, ref green, ref blue, maxValue);
image[realPix] = (byte)red;
image[realPix + 1] = (byte)green;
image[realPix + 2] = (byte)blue;
//change gamma from curve
/*
* image[i * 3] = (ushort)gammaCurve[(int)red];
* image[(i * 3) + 1] = (ushort)gammaCurve[(int)green];
* image[(i * 3) + 2] = (ushort)gammaCurve[(int)blue];*/
}
});
}
public unsafe int[] applyModification(ushort[] image, iPoint2D dim, iPoint2D offset, int colorDepth, ref SoftwareBitmap bitmap)
{
int[] value = new int[256];
using (BitmapBuffer buffer = bitmap.LockBuffer(BitmapBufferAccessMode.Write))
{
using (var reference = buffer.CreateReference())
{
BitmapPlaneDescription bufferLayout = buffer.GetPlaneDescription(0);
((IMemoryBufferByteAccess)reference).GetBuffer(out var temp, out uint capacity);
maxValue = (uint)(1 << colorDepth);
int shift = colorDepth - 8;
if (!cameraWB)
{
mul = new float[4];
//Balance.calculateRGB((int)temperature, out mul[0], out mul[1], out mul[2]);
mul[2] = (float)(255 / temperature);
mul[0] = (float)(255.0 / tint);
mul[1] = 1;
}
//generate the curve
double[] xCurve = new double[5], yCurve = new double[5];
//mid point
xCurve[2] = maxValue / 2;
yCurve[2] = maxValue / 2;
//shadow
xCurve[0] = 0;
yCurve[0] = shadow * (maxValue / (400));
//hightlight
xCurve[4] = maxValue;
yCurve[4] = maxValue - (hightlight * (maxValue / 400));
//contrast
xCurve[1] = maxValue / 4;
yCurve[1] = ((yCurve[0] + yCurve[2]) / 2) - (maxValue / 200);
xCurve[3] = maxValue * 3 / 4;
yCurve[3] = ((yCurve[2] + yCurve[4]) / 2) + (maxValue / 200);
maxValue--;
//interpolate with spline
//double[] contrastCurve = Balance.contrast_curve(shadow, hightlight, 1 << colorDepth);
double[] contrastCurve = Curve.cubicSpline(xCurve, yCurve);
//Change the gamma/No more gammaneeded here, the raw should be transformed to neutral gamma before demos
//double[] gammaCurve = Balance.gamma_curve(0.45, 4.5, 2, 8192 << 3);
//gammacurve from camera
//double[] gammaCurve = Balance.gamma_curve(camCurve[0] / 100, camCurve[1] / 10, 2, 8192 << 3);
Parallel.For(offset.y, dim.y + offset.y, y =>
{
int realY = y * dim.x * 3;
int bufferY = y * dim.x * 4 + +bufferLayout.StartIndex;
for (int x = offset.x; x < dim.x + offset.x; x++)
{
int realPix = realY + (3 * x);
int bufferPix = bufferY + (4 * x);
//get the RGB value
double red = image[realPix],
green = image[realPix + 1],
blue = image[realPix + 2];
//convert to linear rgb (not needed, the raw should be in linear already)
/*Balance.sRGBToRGB(ref red, maxValue - 1);
* Balance.sRGBToRGB(ref green, maxValue - 1);
* Balance.sRGBToRGB(ref blue, maxValue - 1);*/
//scale according to the white balance
red *= mul[0];
green *= mul[1];
blue *= mul[2];
//clip
Luminance.Clip(ref red, ref green, ref blue, maxValue);
double h = 0, s = 0, l = 0;
//transform to HSL value
Color.rgbToHsl(red, green, blue, maxValue, ref h, ref s, ref l);
//change brightness from curve
//add saturation
l = contrastCurve[(uint)(l * maxValue)] / maxValue;
s *= saturation;
s += vibrance;
l *= exposure;
l += brightness / 100;
//change back to RGB
Color.hslToRgb(h, s, l, maxValue, ref red, ref green, ref blue);
//Luminance.Exposure(ref red, ref green, ref blue, exposure);
//Luminance.Brightness(ref red, ref green, ref blue, brightness);
//Balance.scaleGamma(ref red, ref green, ref blue, gamma, maxValue);
Luminance.Contraste(ref red, ref green, ref blue, maxValue, contrast);
//clip
Luminance.Clip(ref red, ref green, ref blue, maxValue);
temp[bufferPix] = (byte)((int)blue >> shift);
temp[bufferPix + 1] = (byte)((int)green >> shift);
temp[bufferPix + 2] = (byte)((int)red >> shift);
Interlocked.Increment(ref value[(((int)red >> shift) + ((int)green >> shift) + ((int)blue >> shift)) / 3]);
//set transparency to 255 else image will be blank
temp[bufferPix + 3] = 255;
//change gamma from curve
/*
* image[i * 3] = (ushort)gammaCurve[(int)red];
* image[(i * 3) + 1] = (ushort)gammaCurve[(int)green];
* image[(i * 3) + 2] = (ushort)gammaCurve[(int)blue];*/
}
});
}
}
return(value);
}
