Comments by RKT S (Top 18 by date)

hi manfred....i did the changes which you asked me to do... but still the watermark image is the one without logo on it... plz help and let me know if i am doing something wrong here.. the final function which i have used is public Bitmap AddWatermark(Bitmap bImg, Bitmap logo) { Bitmap bmPhoto = bImg; int phWidth = bmPhoto.Width; int phHeight =bmPhoto.Height; //bmPhoto.SetResolution(bImg.HorizontalResolution,bImg.VerticalResolution); Graphics grPhoto = Graphics.FromImage(bmPhoto); Bitmap imgWatermark=logo; int wmWidth = imgWatermark.Width; int wmHeight = imgWatermark.Height; //Create a Bitmap based on the previously modified photograph Bitmap ImageAttributes imageAttributes = new ImageAttributes(); ColorMap colorMap = new ColorMap(); colorMap.OldColor = Color.FromArgb(255, 0, 255, 0); colorMap.NewColor = Color.FromArgb(0, 0, 0, 0); ColorMap[] remapTable = { colorMap }; imageAttributes.SetRemapTable(remapTable, ColorAdjustType.Bitmap); float[][] colorMatrixElements = { new float[] {1.0f, 0.0f, 0.0f, 0.0f, 0.0f}, new float[] {0.0f, 1.0f, 0.0f, 0.0f, 0.0f}, new float[] {0.0f, 0.0f, 1.0f, 0.0f, 0.0f}, new float[] {0.0f, 0.0f, 0.0f, 0.2f, 0.0f}, new float[] {0.0f, 0.0f, 0.0f, 0.0f, 1.0f}}; ColorMatrix wmColorMatrix = new ColorMatrix(colorMatrixElements); imageAttributes.SetColorMatrix(wmColorMatrix, ColorMatrixFlag.Default,ColorAdjustType.Bitmap); int xPosOfWm = ((phWidth - wmWidth) - 10); int yPosOfWm = 10; grPhoto.DrawImage(imgWatermark,new Rectangle(xPosOfWm, yPosOfWm, wmWidth, wmHeight), 0, 0,wmWidth,wmHeight,GraphicsUnit.Pixel,imageAttributes); return bmPhoto; }

hi manfred....i did the changes which you asked me to do...
but still the watermark image is the one without logo on it...
plz help and let me know if i am doing something wrong here..
the final function which i have used is

public Bitmap AddWatermark(Bitmap bImg, Bitmap logo)
{

Bitmap bmPhoto = bImg;
int phWidth = bmPhoto.Width;
int phHeight =bmPhoto.Height;
//bmPhoto.SetResolution(bImg.HorizontalResolution,bImg.VerticalResolution);
Graphics grPhoto = Graphics.FromImage(bmPhoto);

Bitmap imgWatermark=logo;
int wmWidth = imgWatermark.Width;
int wmHeight = imgWatermark.Height;

//Create a Bitmap based on the previously modified photograph Bitmap
ImageAttributes imageAttributes = new ImageAttributes();
ColorMap colorMap = new ColorMap();
colorMap.OldColor = Color.FromArgb(255, 0, 255, 0);
colorMap.NewColor = Color.FromArgb(0, 0, 0, 0);
ColorMap[] remapTable = { colorMap };
imageAttributes.SetRemapTable(remapTable, ColorAdjustType.Bitmap);
float[][] colorMatrixElements = {
new float[] {1.0f, 0.0f, 0.0f, 0.0f, 0.0f},
new float[] {0.0f, 1.0f, 0.0f, 0.0f, 0.0f},
new float[] {0.0f, 0.0f, 1.0f, 0.0f, 0.0f},
new float[] {0.0f, 0.0f, 0.0f, 0.7f, 0.0f},
new float[] {0.0f, 0.0f, 0.0f, 0.0f, 1.0f}};
ColorMatrix wmColorMatrix = new ColorMatrix(colorMatrixElements);
imageAttributes.SetColorMatrix(wmColorMatrix, ColorMatrixFlag.Default,ColorAdjustType.Bitmap);
int xPosOfWm = ((phWidth - wmWidth) - 10);
int yPosOfWm = 10;
grPhoto.DrawImage(imgWatermark,new Rectangle(xPosOfWm, yPosOfWm, wmWidth, wmHeight), 0, 0,wmWidth,wmHeight,GraphicsUnit.Pixel,imageAttributes);

return bmPhoto;

}