/// <summary>
/// This is the method that actually does the work.
/// </summary>
/// <param name="DA">The DA object is used to retrieve from inputs and store in outputs.</param>
protected override void SolveInstance(IGH_DataAccess DA)
{
Bitmap sourceImage = null;
DA.GetData(0, ref sourceImage);
Bitmap RChannel = null;
DA.GetData(1, ref RChannel);
Bitmap GChannel = null;
DA.GetData(2, ref GChannel);
Bitmap BChannel = null;
DA.GetData(3, ref BChannel);
Bitmap AChannel = null;
DA.GetData(4, ref AChannel);
sourceImage = ImageUtil.convert(sourceImage, PixelFormat.Format32bppArgb);
if (RChannel != null)
{
RChannel = ImageUtil.convert(RChannel, PixelFormat.Format32bppArgb);
RChannel = Grayscale.CommonAlgorithms.RMY.Apply(RChannel);
ReplaceChannel myFilter = new ReplaceChannel(RGB.R, RChannel);
sourceImage = myFilter.Apply(sourceImage);
}
if (GChannel != null)
{
GChannel = ImageUtil.convert(GChannel, PixelFormat.Format32bppArgb);
GChannel = Grayscale.CommonAlgorithms.RMY.Apply(GChannel);
ReplaceChannel myFilter = new ReplaceChannel(RGB.G, GChannel);
sourceImage = myFilter.Apply(sourceImage);
}
if (BChannel != null)
{
BChannel = ImageUtil.convert(BChannel, PixelFormat.Format32bppArgb);
BChannel = Grayscale.CommonAlgorithms.RMY.Apply(BChannel);
ReplaceChannel myFilter = new ReplaceChannel(RGB.B, BChannel);
sourceImage = myFilter.Apply(sourceImage);
}
if (AChannel != null)
{
AChannel = ImageUtil.convert(AChannel, PixelFormat.Format32bppArgb);
AChannel = Grayscale.CommonAlgorithms.RMY.Apply(AChannel);
ReplaceChannel myFilter = new ReplaceChannel(RGB.A, AChannel);
sourceImage = myFilter.Apply(sourceImage);
}
DA.SetData(0, sourceImage);
}
private void process_button_Click(object sender, EventArgs e)
{
//changes are made here
//Doing classic image layer by layer
//modifying image layer by layer
var extractRGBchannelFilter = new ExtractChannel();
extractRGBchannelFilter.Channel = AForge.Imaging.RGB.G;//RGB.R RGB.B
var redChannel = extractRGBchannelFilter.Apply(_inputImage);
var threshold = new Threshold(150);
var thresholdedImage = threshold.Apply(redChannel);
var replacedFilter = new ReplaceChannel(AForge.Imaging.RGB.G, thresholdedImage);
var replacedImage = replacedFilter.Apply(_inputImage);
pictureBoxOutput.Image = replacedImage;
}
public static Bitmap Sketch(Bitmap input, int redThreshold, int blueThreshold, int greenThreshold)
{
int[,] kernel = {
{ 1, 2, 1, },
{ 2, 4, 2, },
{ 1, 2, 1, },
};
Convolution convultionFilters = new Convolution(kernel);
Threshold thresholdFilter = new Threshold(redThreshold);
input = convultionFilters.Apply(input);
// extract red channel
ExtractChannel extractFilter = new ExtractChannel(RGB.R);
Bitmap channel = extractFilter.Apply(input);
// threshold channel
thresholdFilter.ApplyInPlace(channel);
// put the channel back
ReplaceChannel replaceFilter = new ReplaceChannel(RGB.R, channel);
replaceFilter.ApplyInPlace(input);
// extract blue channel
extractFilter = new ExtractChannel(RGB.B);
channel = extractFilter.Apply(input);
// threshold channel
thresholdFilter.ThresholdValue = blueThreshold;
thresholdFilter.ApplyInPlace(channel);
// put the channel back
replaceFilter = new ReplaceChannel(RGB.B, channel);
replaceFilter.ApplyInPlace(input);
// extract green channel
extractFilter = new ExtractChannel(RGB.G);
channel = extractFilter.Apply(input);
// threshold channel
thresholdFilter.ThresholdValue = greenThreshold;
thresholdFilter.ApplyInPlace(channel);
// put the channel back
replaceFilter = new ReplaceChannel(RGB.G, channel);
replaceFilter.ApplyInPlace(input);
return input;
}
public mSwapRGB(Bitmap BaseBitmap, int A, int R, int G, int B)
{
ExtractChannel cR = new ExtractChannel(RGB.R);
ExtractChannel cG = new ExtractChannel(RGB.G);
ExtractChannel cB = new ExtractChannel(RGB.B);
ExtractChannel cA = new ExtractChannel(RGB.A);
YCbCrExtractChannel cL = new YCbCrExtractChannel(YCbCr.YIndex);
List <Bitmap> maps = new List <Bitmap>();
Bitmap BmpA = new Bitmap(BaseBitmap.Width, BaseBitmap.Height, PixelFormat.Format16bppGrayScale);
Bitmap BmpR = new Bitmap(BaseBitmap.Width, BaseBitmap.Height, PixelFormat.Format16bppGrayScale);
Bitmap BmpG = new Bitmap(BaseBitmap.Width, BaseBitmap.Height, PixelFormat.Format16bppGrayScale);
Bitmap BmpB = new Bitmap(BaseBitmap.Width, BaseBitmap.Height, PixelFormat.Format16bppGrayScale);
Bitmap BmpL = new Bitmap(BaseBitmap.Width, BaseBitmap.Height, PixelFormat.Format16bppGrayScale);
BmpA = cA.Apply(new Bitmap(BaseBitmap));
BmpR = cR.Apply(new Bitmap(BaseBitmap));
BmpG = cG.Apply(new Bitmap(BaseBitmap));
BmpB = cB.Apply(new Bitmap(BaseBitmap));
BmpL = cL.Apply(new Bitmap(BaseBitmap));
maps.Add(BmpA);
maps.Add(BmpR);
maps.Add(BmpG);
maps.Add(BmpB);
maps.Add(BmpL);
Bitmap bmp = new Bitmap(BaseBitmap.Width, BaseBitmap.Height, PixelFormat.Format32bppArgb);
bmp.MakeTransparent();
bmp = new ReplaceChannel(RGB.A, maps[A]).Apply(bmp);
bmp = new ReplaceChannel(RGB.R, maps[R]).Apply(bmp);
bmp = new ReplaceChannel(RGB.G, maps[G]).Apply(bmp);
bmp = new ReplaceChannel(RGB.B, maps[B]).Apply(bmp);
ModifiedBitmap = new Bitmap(bmp);
}
public static Bitmap RGBA_replaceChannel(Bitmap img, Bitmap RChannel, Bitmap GChannel, Bitmap BChannel, Bitmap AChannel)
{
Bitmap NewIMG = ImageUtil.convert(img, PixelFormat.Format32bppArgb);
if (RChannel != null)
{
RChannel = ImageUtil.convert(RChannel, PixelFormat.Format32bppArgb);
RChannel = Grayscale.CommonAlgorithms.RMY.Apply(RChannel);
ReplaceChannel myFilter = new ReplaceChannel(RGB.R, RChannel);
img = myFilter.Apply(img);
}
if (GChannel != null)
{
GChannel = ImageUtil.convert(GChannel, PixelFormat.Format32bppArgb);
GChannel = Grayscale.CommonAlgorithms.RMY.Apply(GChannel);
ReplaceChannel myFilter = new ReplaceChannel(RGB.G, GChannel);
img = myFilter.Apply(img);
}
if (BChannel != null)
{
BChannel = ImageUtil.convert(BChannel, PixelFormat.Format32bppArgb);
BChannel = Grayscale.CommonAlgorithms.RMY.Apply(BChannel);
ReplaceChannel myFilter = new ReplaceChannel(RGB.B, BChannel);
img = myFilter.Apply(img);
}
if (AChannel != null)
{
AChannel = ImageUtil.convert(AChannel, PixelFormat.Format32bppArgb);
AChannel = Grayscale.CommonAlgorithms.RMY.Apply(AChannel);
ReplaceChannel myFilter = new ReplaceChannel(RGB.A, AChannel);
img = myFilter.Apply(img);
}
return(img);
}
// Process new frame
public void ProcessFrame(ref Bitmap image)
{
if (backgroundFrame == null)
{
// create initial backgroung image
backgroundFrame = grayscaleFilter.Apply(image);
// get image dimension
width = image.Width;
height = image.Height;
// just return for the first time
return;
}
Bitmap tmpImage;
// apply the grayscale file
tmpImage = grayscaleFilter.Apply(image);
// set backgroud frame as an overlay for difference filter
differenceFilter.OverlayImage = backgroundFrame;
// apply difference filter
Bitmap tmpImage2 = differenceFilter.Apply(tmpImage);
// lock the temporary image and apply some filters on the locked data
bitmapData = tmpImage2.LockBits(new Rectangle(0, 0, width, height),
ImageLockMode.ReadWrite, PixelFormat.Format8bppIndexed);
// threshold filter
thresholdFilter.ApplyInPlace(bitmapData);
// erosion filter
Bitmap tmpImage3 = erosionFilter.Apply(bitmapData);
// unlock temporary image
tmpImage2.UnlockBits(bitmapData);
tmpImage2.Dispose( );
// calculate amount of changed pixels
pixelsChanged = (calculateMotionLevel) ?
CalculateWhitePixels(tmpImage3) : 0;
// dispose old background
backgroundFrame.Dispose( );
// set backgound to current
backgroundFrame = tmpImage;
// extract red channel from the original image
Bitmap redChannel = extrachChannel.Apply(image);
// merge red channel with moving object
mergeFilter.OverlayImage = tmpImage3;
Bitmap tmpImage4 = mergeFilter.Apply(redChannel);
redChannel.Dispose( );
tmpImage3.Dispose( );
// Updated from original example to support new AForge Libraries (Sumit)
if (replaceChannel == null)
{
replaceChannel = new ReplaceChannel(RGB.R, tmpImage4);
}
else
{
replaceChannel.ChannelImage = tmpImage4;
}
Bitmap tmpImage5 = replaceChannel.Apply(image);
tmpImage4.Dispose( );
image.Dispose( );
image = tmpImage5;
}
// Process new frame
public void ProcessFrame(ref Bitmap image)
{
if (backgroundFrame == null)
{
// create initial backgroung image
backgroundFrame = grayscaleFilter.Apply(image);
// get image dimension
width = image.Width;
height = image.Height;
// just return for the first time
return;
}
Bitmap tmpImage;
// apply the the grayscale file
tmpImage = grayscaleFilter.Apply(image);
if (++counter == 2)
{
counter = 0;
// move background towards current frame
moveTowardsFilter.OverlayImage = tmpImage;
moveTowardsFilter.ApplyInPlace(backgroundFrame);
}
// set backgroud frame as an overlay for difference filter
differenceFilter.OverlayImage = backgroundFrame;
// lock temporary image to apply several filters
bitmapData = tmpImage.LockBits(new Rectangle(0, 0, width, height),
ImageLockMode.ReadWrite, PixelFormat.Format8bppIndexed);
// apply difference filter
differenceFilter.ApplyInPlace(bitmapData);
// apply threshold filter
thresholdFilter.ApplyInPlace(bitmapData);
// calculate amount of changed pixels
pixelsChanged = (calculateMotionLevel) ?
CalculateWhitePixels(bitmapData) : 0;
Bitmap tmpImage2 = openingFilter.Apply(bitmapData);
// unlock temporary image
tmpImage.UnlockBits(bitmapData);
tmpImage.Dispose( );
// apply edges filter
Bitmap tmpImage2b = edgesFilter.Apply(tmpImage2);
tmpImage2.Dispose( );
// extract red channel from the original image
Bitmap redChannel = extrachChannel.Apply(image);
// merge red channel with moving object borders
mergeFilter.OverlayImage = tmpImage2b;
Bitmap tmpImage3 = mergeFilter.Apply(redChannel);
redChannel.Dispose( );
tmpImage2b.Dispose( );
// replace red channel in the original image
// Updated from original example to support new AForge Libraries (Sumit)
if (replaceChannel == null)
{
replaceChannel = new ReplaceChannel(RGB.R, tmpImage3);
}
else
{
replaceChannel.ChannelImage = tmpImage3;
}
Bitmap tmpImage4 = replaceChannel.Apply(image);
tmpImage3.Dispose( );
image.Dispose( );
image = tmpImage4;
}
