/// <summary>
/// Returns an image with the Hue modified by the specified ammount
/// </summary>
/// <param name="image"></param>
/// <param name="h"></param>
/// <returns></returns>
public static Bitmap ChangeHue(Bitmap image, float h)
{
bool IsTransparent = false;
try
{
//Set up progress
Global.bTackPixelProgress = true;
Global.iCurrentOp_PixelCount = 0;
Global.iCurrentOp_PixelTotal = image.Width * image.Height;
UnsafeBitmap newUBMP = new UnsafeBitmap(image);
newUBMP.LockImage();
Color cColor;
for (int iWidth = 0; iWidth < image.Width; iWidth++)
{
for (int iHeight = 0; iHeight < image.Height; iHeight++)
{
cColor = newUBMP.GetPixel(iWidth, iHeight);
HLS newHLS = new HLS();
newHLS.Red = cColor.R;
newHLS.Blue = cColor.B;
newHLS.Green = cColor.G;
newHLS.Hue += h;
newHLS.ToRGB();
if (!IsTransparent)
{
IsTransparent = Global.CheckPixelTransparency(cColor);
}
cColor = Color.FromArgb(newHLS.Red, newHLS.Green, newHLS.Blue);
newUBMP.SetPixel(iWidth, iHeight, cColor);
Global.iCurrentOp_PixelCount++;
}
}
newUBMP.UnlockImage();
Global.bTackPixelProgress = false;
}
catch (Exception ex)
{
Global.WriteToLog(ex);
}
if (IsTransparent)
{
image.MakeTransparent();
}
return(image);
}
/// <summary>
/// Returns a grayscale version of the given image
/// </summary>
/// <param name="original"></param>
/// <returns></returns>
public static Bitmap Grayscale(Bitmap bmpSource)
{
try
{
//transparency check flag
bool IsTransparent = false;
//Set up progress
Global.bTackPixelProgress = true;
Global.iCurrentOp_PixelCount = 0;
Global.iCurrentOp_PixelTotal = bmpSource.Width * bmpSource.Height;
UnsafeBitmap newUBMP = new UnsafeBitmap(bmpSource);
newUBMP.LockImage();
for (int i = 0; i < bmpSource.Width; i++)
{
for (int j = 0; j < bmpSource.Height; j++)
{
//get the pixel from the original image
Color originalColor = newUBMP.GetPixel(i, j);
//create the grayscale version of the pixel
int grayScale = (int)((originalColor.R * .3) + (originalColor.G * .59)
+ (originalColor.B * .11));
//create the color object
Color newColor = Color.FromArgb(grayScale, grayScale, grayScale);
if (!IsTransparent)
{
IsTransparent = Global.CheckPixelTransparency(originalColor);
}
//set the new image's pixel to the grayscale version
newUBMP.SetPixel(i, j, newColor);
Global.iCurrentOp_PixelCount++;
}
}
newUBMP.UnlockImage();
if (IsTransparent)
{
bmpSource.MakeTransparent();
}
}
catch (Exception ex)
{
Global.WriteToLog(ex);
}
return(bmpSource);
}
/// <summary>
/// Dithers an image threshold style, where no shading occures
/// </summary>
/// <param name="image"></param>
/// <returns></returns>
public static Bitmap Dither_Threshold(Bitmap image)
{
bool IsTransparent = false;
//Set up progress
Global.bTackPixelProgress = true;
Global.iCurrentOp_PixelCount = 0;
Global.iCurrentOp_PixelTotal = image.Width * image.Height;
try
{
UnsafeBitmap newUBMP = new UnsafeBitmap(image);
newUBMP.LockImage();
for (int i = 0; i < image.Width; i++)
{
for (int j = 0; j < image.Height; j++)
{
Color cOriginalPixelColor = newUBMP.GetPixel(i, j);
float fAddedPixels = cOriginalPixelColor.R + cOriginalPixelColor.B + cOriginalPixelColor.G;
//Dithering code goes here
Color newColor = Color.FromArgb((fAddedPixels >= 382.5 ? 255 : 0), (fAddedPixels >= 382.5 ? 255 : 0),
(fAddedPixels >= 382.5 ? 255 : 0));
newUBMP.SetPixel(i, j, newColor);
if (!IsTransparent)
{
IsTransparent = Global.CheckPixelTransparency(cOriginalPixelColor);
}
Global.iCurrentOp_PixelCount++;
}
}
newUBMP.UnlockImage();
}
catch (Exception ex)
{
Global.WriteToLog(ex);
}
if (IsTransparent)
{
image.MakeTransparent();
}
Global.bTackPixelProgress = false;
return(image);
}
/// <summary>
/// Inverts the given image
/// </summary>
/// <param name="image"></param>
/// <returns></returns>
public static Bitmap Invert(Bitmap image)
{
try
{
//Flag to track transparency
bool IsTransparent = false;
//Set up progress
Global.bTackPixelProgress = true;
Global.iCurrentOp_PixelCount = 0;
Global.iCurrentOp_PixelTotal = image.Width * image.Height;
UnsafeBitmap newUBMP = new UnsafeBitmap(image);
newUBMP.LockImage();
//The color to set the pixel to.
Color c;
for (int i = 0; i < image.Width; i++) // interate hru image pixel by pixel
{
for (int j = 0; j < image.Height; j++)
{
c = newUBMP.GetPixel(i, j); // get the pixels color
newUBMP.SetPixel(i, j, Color.FromArgb(255 - c.R, 255 - c.G, 255 - c.B)); // invert the colors
if (!IsTransparent)
{
IsTransparent = Global.CheckPixelTransparency(c);
}
Global.iCurrentOp_PixelCount++;
}
}
newUBMP.UnlockImage();
if (IsTransparent)
{
image.MakeTransparent();
}
Global.bTackPixelProgress = false;
}
catch (Exception ex)
{
Global.WriteToLog(ex);
}
return(image);
}
public static Bitmap Dither_Atkinson(Bitmap image)
{
bool IsTransparent = false;
//Set up progress
Global.bTackPixelProgress = true;
Global.iCurrentOp_PixelCount = 0;
Global.iCurrentOp_PixelTotal = image.Width * image.Height;
try
{
UnsafeBitmap newUBMP = new UnsafeBitmap(image);
newUBMP.LockImage();
for (int i = 0; i < image.Width; i++)
{
for (int j = 0; j < image.Height; j++)
{
Color cOriginalPixelColor = newUBMP.GetPixel(i, j);
//create the grayscale version of the pixel - using code here so we only need to do math for one color value instead of 3
int grayScale = (int)((cOriginalPixelColor.R * .3) + (cOriginalPixelColor.G * .59)
+ (cOriginalPixelColor.B * .11));
//Dithering code goes here
Color newColor = Color.FromArgb((grayScale >= 128 ? 255 : 0), (grayScale >= 128 ? 255 : 0),
(grayScale >= 128 ? 255 : 0));
float fQuantError = grayScale - newColor.R;//Color.FromArgb(1, 1, 1);
//Set our current pixel
newUBMP.SetPixel(i, j, newColor);
//Store color here and set to black to avoid compiler error
Color c1 = Color.Black;
try
{
//Set pixel at x+1,y if valid
if (i + 1 < image.Width)
{
c1 = newUBMP.GetPixel(i + 1, j);
grayScale = (int)((c1.R * .3) + (c1.G * .59)
+ (c1.B * .11));
int iNewOffsetColor = (int)Math.Round((double)grayScale + 1d / 8d * fQuantError);
if (iNewOffsetColor > 255)
{
iNewOffsetColor = 255;
}
else if (iNewOffsetColor < 0)
{
iNewOffsetColor = 0;
}
newUBMP.SetPixel(i + 1, j, Color.FromArgb(
iNewOffsetColor,
iNewOffsetColor,
iNewOffsetColor));
}
//Set pixel at x+2,y if valid
if (i + 2 < image.Width)
{
c1 = newUBMP.GetPixel(i + 2, j);
grayScale = (int)((c1.R * .3) + (c1.G * .59)
+ (c1.B * .11));
int iNewOffsetColor = (int)Math.Round((double)grayScale + 1d / 8d * fQuantError);
if (iNewOffsetColor > 255)
{
iNewOffsetColor = 255;
}
else if (iNewOffsetColor < 0)
{
iNewOffsetColor = 0;
}
newUBMP.SetPixel(i + 2, j, Color.FromArgb(
iNewOffsetColor,
iNewOffsetColor,
iNewOffsetColor));
}
//Set pixel at x-1, y+1
if (i - 1 > 0 && j + 1 < image.Height)
{
c1 = newUBMP.GetPixel(i - 1, j + 1);
grayScale = (int)((c1.R * .3) + (c1.G * .59)
+ (c1.B * .11));
int iNewOffsetColor = (int)Math.Round((double)grayScale + 1d / 8d * fQuantError);
if (iNewOffsetColor > 255)
{
iNewOffsetColor = 255;
}
else if (iNewOffsetColor < 0)
{
iNewOffsetColor = 0;
}
newUBMP.SetPixel(i - 1, j + 1, Color.FromArgb(
iNewOffsetColor,
iNewOffsetColor,
iNewOffsetColor));
}
//set pixel at x, y + 1
if (j + 1 < image.Height)
{
c1 = newUBMP.GetPixel(i, j + 1);
grayScale = (int)((c1.R * .3) + (c1.G * .59)
+ (c1.B * .11));
int iNewOffsetColor = (int)Math.Round((double)grayScale + 1d / 8d * fQuantError);
if (iNewOffsetColor > 255)
{
iNewOffsetColor = 255;
}
else if (iNewOffsetColor < 0)
{
iNewOffsetColor = 0;
}
newUBMP.SetPixel(i, j + 1, Color.FromArgb(
iNewOffsetColor,
iNewOffsetColor,
iNewOffsetColor));
}
//set pixel at x + 1, y + 1
if (i + 1 < image.Width && j + 1 < image.Height)
{
c1 = newUBMP.GetPixel(i + 1, j + 1);
grayScale = (int)((c1.R * .3) + (c1.G * .59)
+ (c1.B * .11));
int iNewOffsetColor = (int)Math.Round((double)grayScale + 1d / 8d * fQuantError);
if (iNewOffsetColor > 255)
{
iNewOffsetColor = 255;
}
else if (iNewOffsetColor < 0)
{
iNewOffsetColor = 0;
}
newUBMP.SetPixel(i + 1, j + 1, Color.FromArgb(
iNewOffsetColor,
iNewOffsetColor,
iNewOffsetColor));
}
//set pixel at x + 1, y + 2
if (i + 1 < image.Width && j + 2 < image.Height)
{
c1 = newUBMP.GetPixel(i + 1, j + 2);
grayScale = (int)((c1.R * .3) + (c1.G * .59)
+ (c1.B * .11));
int iNewOffsetColor = (int)Math.Round((double)grayScale + 1d / 8d * fQuantError);
if (iNewOffsetColor > 255)
{
iNewOffsetColor = 255;
}
else if (iNewOffsetColor < 0)
{
iNewOffsetColor = 0;
}
newUBMP.SetPixel(i + 1, j + 2, Color.FromArgb(
iNewOffsetColor,
iNewOffsetColor,
iNewOffsetColor));
}
}
catch (Exception ex)
{
throw ex;
}
if (!IsTransparent)
{
IsTransparent = Global.CheckPixelTransparency(cOriginalPixelColor);
}
Global.iCurrentOp_PixelCount++;
}
}
newUBMP.UnlockImage();
}
catch (Exception ex)
{
Global.WriteToLog(ex);
}
if (IsTransparent)
{
image.MakeTransparent();
}
Global.bTackPixelProgress = false;
return(image);
}
/// <summary>
/// Returns a sepia toned image
/// </summary>
/// <param name="image"></param>
/// <returns></returns>
public static Bitmap Sepia(Bitmap image)
{
try
{
bool IsTransparent = false;
//Set up progress
Global.bTackPixelProgress = true;
Global.iCurrentOp_PixelCount = 0;
Global.iCurrentOp_PixelTotal = image.Width * image.Height;
try
{
UnsafeBitmap newUBMP = new UnsafeBitmap(image);
newUBMP.LockImage();
for (int i = 0; i < image.Width; i++)
{
for (int j = 0; j < image.Height; j++)
{
Color cOriginalPixelColor = newUBMP.GetPixel(i, j);
double dRed = (cOriginalPixelColor.R * .393) + (cOriginalPixelColor.G * .769) + (cOriginalPixelColor.B * .189);
double dBlue = (cOriginalPixelColor.R * .272) + (cOriginalPixelColor.G * .534) + (cOriginalPixelColor.B * .131);
double dGreen = (cOriginalPixelColor.R * .349) + (cOriginalPixelColor.G * .686) + (cOriginalPixelColor.B * .168);
if (dRed > 255)
{
dRed = 255;
}
if (dGreen > 255)
{
dGreen = 255;
}
if (dBlue > 255)
{
dBlue = 255;
}
newUBMP.SetPixel(i, j, Color.FromArgb((int)cOriginalPixelColor.A, (int)Math.Round(dRed), (int)Math.Round(dGreen), (int)Math.Round(dBlue)));
if (!IsTransparent)
{
IsTransparent = Global.CheckPixelTransparency(cOriginalPixelColor);
}
Global.iCurrentOp_PixelCount++;
}
}
newUBMP.UnlockImage();
}
catch (Exception ex)
{
Global.WriteToLog(ex);
}
if (IsTransparent)
{
image.MakeTransparent();
}
Global.bTackPixelProgress = false;
}
catch (Exception ex)
{
Global.WriteToLog(ex);
}
return(image);
}
/// <summary>
/// Returns a bitmap with the gamma modified according to the given rgb value
/// </summary>
/// <param name="bitmp"></param>
/// <param name="red"></param>
/// <param name="green"></param>
/// <param name="blue"></param>
/// <returns></returns>
public static Bitmap Gamma(Bitmap image, double red, double green, double blue)
{
try
{
if (red <= 5 || red >= .2 || blue <= 5 || blue >= .2 || blue <= 5 || blue >= .2)
{
byte[] redGamma = MakeGammainfo(red);
byte[] greenGamma = MakeGammainfo(green);
byte[] blueGamma = MakeGammainfo(blue);
bool IsTransparent = false;
//Set up progress
Global.bTackPixelProgress = true;
Global.iCurrentOp_PixelCount = 0;
Global.iCurrentOp_PixelTotal = image.Width * image.Height;
UnsafeBitmap newUBMP = new UnsafeBitmap(image);
newUBMP.LockImage();
for (int i = 0; i < image.Width; i++)
{
for (int j = 0; j < image.Height; j++)
{
Color c = newUBMP.GetPixel(i, j);
newUBMP.SetPixel(i, j, Color.FromArgb(redGamma[c.R],
greenGamma[c.G], blueGamma[c.B]));
//if the image hasnt been determined as transparent, check it.
if (!IsTransparent)
{
IsTransparent = Global.CheckPixelTransparency(c);
}
Global.iCurrentOp_PixelCount++;
}
}
newUBMP.UnlockImage();
if (IsTransparent)
{
image.MakeTransparent();
}
Global.bTackPixelProgress = false;
return(image);
}
else
{
return(image);
}
}
catch (Exception ex)
{
Global.WriteToLog(ex);
return(image);
}
}
public static Bitmap ChromaKey(Bitmap ForgroundImage, Bitmap BackgroundImage, float Sensitivity)
{
Bitmap bmpTemp = ForgroundImage;
try
{
bmpTemp = (Bitmap)ForgroundImage.Clone();
Bitmap bmpBackground = new Bitmap(BackgroundImage, bmpTemp.Width, bmpTemp.Height);
//Flag to track transparency
bool IsTransparent = false;
//Set up progress
Global.bTackPixelProgress = true;
Global.iCurrentOp_PixelCount = 0;
Global.iCurrentOp_PixelTotal = bmpTemp.Width * bmpTemp.Height;
UnsafeBitmap ubmpForground = new UnsafeBitmap(bmpTemp);
ubmpForground.LockImage();
UnsafeBitmap ubmpBackground = new UnsafeBitmap(bmpBackground);
ubmpBackground.LockImage();
Color cWorkingColor;
for (int iX = 0; iX < bmpTemp.Width; iX++)
{
for (int iY = 0; iY < bmpTemp.Height; iY++)
{
cWorkingColor = ubmpForground.GetPixel(iX, iY);
float fIntensity = ((float)cWorkingColor.G / ((cWorkingColor.B + cWorkingColor.R) / 2));
if (fIntensity > Sensitivity)
{
ubmpForground.SetPixel(iX, iY, ubmpBackground.GetPixel(iX, iY));
}
if (!IsTransparent)
{
IsTransparent = Global.CheckPixelTransparency(cWorkingColor);
}
Global.iCurrentOp_PixelCount++;
}
}
ubmpForground.UnlockImage();
ubmpBackground.UnlockImage();
if (IsTransparent)
{
bmpTemp.MakeTransparent();
}
Global.bTackPixelProgress = false;
}
catch (Exception ex)
{
Global.WriteToLog(ex);
}
return(bmpTemp);
}
/// <summary>
/// Returns the source image with the luminosity modified by the specified ammount
/// </summary>
/// <param name="sourceimage"></param>
/// <param name="l"></param>
/// <returns></returns>
public static Bitmap ChangeLuminosity(Bitmap image, float l)
{
bool IsTransparent = false;
try
{
//Set up progress
Global.bTackPixelProgress = true;
Global.iCurrentOp_PixelCount = 0;
Global.iCurrentOp_PixelTotal = image.Width * image.Height;
UnsafeBitmap newUBMP = new UnsafeBitmap(image);
newUBMP.LockImage();
Color c;
for (int iWidth = 0; iWidth < image.Width; iWidth++)
{
for (int iHeight = 0; iHeight < image.Height; iHeight++)
{
c = newUBMP.GetPixel(iWidth, iHeight);
HLS newHLS = new HLS();
newHLS.Red = c.R;
newHLS.Blue = c.B;
newHLS.Green = c.G;
if (newHLS.Luminance + l >= 1f)
{
newHLS.Luminance = 1f;
}
else if (newHLS.Luminance + l <= 0.0f)
{
newHLS.Luminance = 0.0f;
}
else
{
newHLS.Luminance += l;
}
newHLS.ToRGB();
if (!IsTransparent)
{
IsTransparent = Global.CheckPixelTransparency(c);
}
c = Color.FromArgb(newHLS.Red, newHLS.Green, newHLS.Blue);
newUBMP.SetPixel(iWidth, iHeight, c);
Global.iCurrentOp_PixelCount++;
}
}
newUBMP.UnlockImage();
Global.bTackPixelProgress = false;
}
catch (Exception ex)
{
Global.WriteToLog(ex);
}
if (IsTransparent)
{
image.MakeTransparent();
}
return(image);
}