public bool EmptyForm(ImageFile imgFile, int imageWidth, int imageHeight, string drawString)
{
//ImageFile imgFile = new ImageFile(imageFileName);
ImageFile tempFile = new ImageFile(Path.GetTempPath() + "i" + DateTimeOffset.UtcNow.UtcTicks.ToString("x") + ".png");
// example: convert -size 180x225 xc:white -fill 292990_01_Gallery.png -draw "circle 30,110 32,82" -fuzz 5% -trim CircleW.png
callString = ImPath + ConvertCommand + " -size " + imageWidth + "x" + imageHeight +
" xc:white -fill " + Os.Escape(imgFile.FullName, EscapeMode.paramEsc) +
" -draw \"" + drawString + "\" -fuzz 50% -trim " + Os.Escape(tempFile.FullName, EscapeMode.paramEsc);
call = new RaiSystem(callString);
string msg = new string(' ', 200);;
call.Exec(out msg);
try
{
File.Delete(tempFile.FullName);
}
catch (Exception)
{
}
if (msg.Contains("geometry does not contain image"))
{
return(true);
}
return(false);
}
public int Histogram(string imageFile, string histogramFileName)
{
string commandline = " -format %c " + Os.Escape(imageFile, EscapeMode.paramEsc) + " -colors 32 -depth 8 histogram:info:" + Os.Escape(histogramFileName, EscapeMode.paramEsc);
call = new RaiSystem(ImPath + ConvertCommand, commandline);
call.Exec();
return(call.ExitCode);
}
