Merging 2 images using C# -


i want merge 2 pictures in c# program. first 1 picture in grayscale mode, , second 1 in picture: 2nd picture

both of pictures/images have same size, , code:

bitmap first = new bitmap (picturebox1.image); bitmap second = new bitmap (picturebox2.image); bitmap result = new bitmap (first.width, first.height); graphics g = graphics.fromimage(result); g.drawimageunscaled(first, 0, 0); g.flush(); g.drawimageunscaled(second, 0, 0); g.flush(); picturebox3.image = result;

i can join picture, result has smaller size 2 originals (both pictures have same size). give me suggestions?

additionally, want result picture has condition : if edge pixel in 2nd picture dropped bright side @ 1st one, dark, otherwise when edge dropped dark side, bright (seem glow). text semi transparent.

here's example of results want.

result

could give suggestions please?

it joining 

bitmap first = new bitmap (picturebox1.image);     bitmap second = new bitmap (picturebox2.image);     bitmap result = new bitmap (first.width+first.width, first.height);     graphics g = graphics.fromimage(result);     g.drawimageunscaled(first, 0, 0);     g.drawimageunscaled(second,first.width, 0);

try merging 1 on top . set alpha ( red: u can use bitmap.maketransparent if u not want alpha)

        public bitmap setimageopacity(image image, float opacity)         {             try             {                 //create bitmap size of image provided                   bitmap bmp = new bitmap(image.width, image.height);                  //create graphics object image                   using (graphics gfx = graphics.fromimage(bmp))                 {                      //create color matrix object                       colormatrix matrix = new colormatrix();                      //set opacity                       matrix.matrix33 = opacity;                      //create image attributes                       imageattributes attributes = new imageattributes();                      //set color(opacity) of image                       attributes.setcolormatrix(matrix, colormatrixflag.default, coloradjusttype.bitmap);                      //now draw image                       gfx.drawimage(image, new rectangle(0, 0, bmp.width, bmp.height), 0, 0, image.width, image.height, graphicsunit.pixel, attributes);                 }                 return bmp;             }             catch (exception ex)             {                  return null;             }         }          private void button1_click(object sender, eventargs e)         {             bitmap first = new bitmap(picturebox1.image);              bitmap second = setimageopacity(picturebox2.image, 0.5f);             //bitmap result = new bitmap(first.width, first.height);             //fix :             bitmap result = new bitmap(math.max(first.width,second.width), math.max(first.height,second.height));             console.writeline(first.width);             graphics g = graphics.fromimage(result);             g.drawimageunscaled(first, 0, 0);             g.drawimageunscaled(second, 0, 0);             picturebox3.image = result;             result.save("result.jpg" );         }     } }

and coming watermark why not want use drawstring alpha here article these http://www.codeproject.com/articles/5034/how-to-implement-alpha-blending


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