public static Bitmap ConvertTo4bpp(System.Drawing.Bitmap img)
{
Bitmap res;
FIBITMAP dib = FreeImage.CreateFromBitmap(img);
dib = FreeImage.ConvertColorDepth(dib, FREE_IMAGE_COLOR_DEPTH.FICD_04_BPP, true);
res = FreeImage.GetBitmap(dib);
FreeImage.UnloadEx(ref dib);
return(res);
}
private void bExample01_Click(object sender, EventArgs e)
{
// Load bitmap
FIBITMAP dib = FreeImage.LoadEx("Sample.jpg");
// Check success
if (dib.IsNull)
{
MessageBox.Show("Could not load Sample.jpg", "Error");
return;
}
// Check whether bitmap is 24-bit
if (FreeImage.GetBPP(dib) != 24)
{
MessageBox.Show("Sample.jpg is not 24-bit.", "Error");
FreeImage.UnloadEx(ref dib);
return;
}
// Convert the 24-bit bitmap to 8-bit and forcing the result will be greyscale
dib = FreeImage.ConvertColorDepth(dib, FREE_IMAGE_COLOR_DEPTH.FICD_08_BPP | FREE_IMAGE_COLOR_DEPTH.FICD_FORCE_GREYSCALE, true);
if (FreeImage.GetBPP(dib) == 8)
{
// Convert the FreeImage-Bitmap into a .NET bitmap
Bitmap bitmap = FreeImage.GetBitmap(dib);
// Dispose the bitmap of the pictureBox
if (picBox.Image != null)
{
picBox.Image.Dispose();
}
// Assign the bitmap to the picturebox
picBox.Image = bitmap;
}
// Unload source bitmap
FreeImage.UnloadEx(ref dib);
}
private void bExample02_Click(object sender, EventArgs e)
{
FIBITMAP dib = FreeImage.LoadEx("Sample.jpg");
// Check success
if (dib.IsNull)
{
MessageBox.Show("Could not load Sample.jpg", "Error");
return;
}
// Convert bitmap to 8 bit
dib = FreeImage.ConvertColorDepth(dib, FREE_IMAGE_COLOR_DEPTH.FICD_08_BPP, true);
// Check whether conversion succeeded
if (FreeImage.GetBPP(dib) != 8)
{
MessageBox.Show("Converting Sample.jpg to 8-bit failed.", "Error");
FreeImage.UnloadEx(ref dib);
return;
}
// Convert the FreeImage-Bitmap into a .NET bitmap
Bitmap bitmap = FreeImage.GetBitmap(dib);
// Dispose old bitmap
if (picBox.Image != null)
{
picBox.Image.Dispose();
}
// Assign new bitmap
picBox.Image = bitmap;
// Unload bitmap
FreeImage.UnloadEx(ref dib);
}
void Run()
{
Bitmap pic = new Bitmap("Base.png");
{
String fn = "1bpp-CCITTFAX3";
FIBITMAP p32 = FreeImage.CreateFromBitmap(Draws(fn, pic));
FIBITMAP p1 = FreeImage.ConvertColorDepth(p32, FREE_IMAGE_COLOR_DEPTH.FICD_FORCE_GREYSCALE | FREE_IMAGE_COLOR_DEPTH.FICD_01_BPP);
FreeImage.Save(FREE_IMAGE_FORMAT.FIF_TIFF, p1, fn + ".tif", FREE_IMAGE_SAVE_FLAGS.TIFF_CCITTFAX3);
FreeImage.Unload(p1);
FreeImage.Unload(p32);
}
{
String fn = "1bpp-CCITTFAX4";
FIBITMAP p32 = FreeImage.CreateFromBitmap(Draws(fn, pic));
FIBITMAP p1 = FreeImage.ConvertColorDepth(p32, FREE_IMAGE_COLOR_DEPTH.FICD_FORCE_GREYSCALE | FREE_IMAGE_COLOR_DEPTH.FICD_01_BPP);
FreeImage.Save(FREE_IMAGE_FORMAT.FIF_TIFF, p1, fn + ".tif", FREE_IMAGE_SAVE_FLAGS.TIFF_CCITTFAX4);
FreeImage.Unload(p1);
FreeImage.Unload(p32);
}
{
String fn = "1bpp-DEFLATE";
FIBITMAP p32 = FreeImage.CreateFromBitmap(Draws(fn, pic));
FIBITMAP p1 = FreeImage.ConvertColorDepth(p32, FREE_IMAGE_COLOR_DEPTH.FICD_FORCE_GREYSCALE | FREE_IMAGE_COLOR_DEPTH.FICD_01_BPP);
FreeImage.Save(FREE_IMAGE_FORMAT.FIF_TIFF, p1, fn + ".tif", FREE_IMAGE_SAVE_FLAGS.TIFF_DEFLATE);
FreeImage.Unload(p1);
FreeImage.Unload(p32);
}
{
String fn = "1bpp-LZW";
FIBITMAP p32 = FreeImage.CreateFromBitmap(Draws(fn, pic));
FIBITMAP p1 = FreeImage.ConvertColorDepth(p32, FREE_IMAGE_COLOR_DEPTH.FICD_FORCE_GREYSCALE | FREE_IMAGE_COLOR_DEPTH.FICD_01_BPP);
FreeImage.Save(FREE_IMAGE_FORMAT.FIF_TIFF, p1, fn + ".tif", FREE_IMAGE_SAVE_FLAGS.TIFF_LZW);
FreeImage.Unload(p1);
FreeImage.Unload(p32);
}
{
String fn = "1bpp-PACKBITS";
FIBITMAP p32 = FreeImage.CreateFromBitmap(Draws(fn, pic));
FIBITMAP p1 = FreeImage.ConvertColorDepth(p32, FREE_IMAGE_COLOR_DEPTH.FICD_FORCE_GREYSCALE | FREE_IMAGE_COLOR_DEPTH.FICD_01_BPP);
FreeImage.Save(FREE_IMAGE_FORMAT.FIF_TIFF, p1, fn + ".tif", FREE_IMAGE_SAVE_FLAGS.TIFF_PACKBITS);
FreeImage.Unload(p1);
FreeImage.Unload(p32);
}
{
String fn = "1bpp-ADOBE_DEFLATE";
FIBITMAP p32 = FreeImage.CreateFromBitmap(Draws(fn, pic));
FIBITMAP p1 = FreeImage.ConvertColorDepth(p32, FREE_IMAGE_COLOR_DEPTH.FICD_FORCE_GREYSCALE | FREE_IMAGE_COLOR_DEPTH.FICD_01_BPP);
FreeImage.Save(FREE_IMAGE_FORMAT.FIF_TIFF, p1, fn + ".tif", FREE_IMAGE_SAVE_FLAGS.TIFF_ADOBE_DEFLATE);
FreeImage.Unload(p1);
FreeImage.Unload(p32);
}
{
String fn = "4bpp-DEFLATE";
FIBITMAP p32 = FreeImage.CreateFromBitmap(Draws(fn, pic));
FIBITMAP p1 = FreeImage.ConvertColorDepth(p32, FREE_IMAGE_COLOR_DEPTH.FICD_04_BPP);
FreeImage.Save(FREE_IMAGE_FORMAT.FIF_TIFF, p1, fn + ".tif", FREE_IMAGE_SAVE_FLAGS.TIFF_DEFLATE);
FreeImage.Unload(p1);
FreeImage.Unload(p32);
}
{
String fn = "4bpp-LZW";
FIBITMAP p32 = FreeImage.CreateFromBitmap(Draws(fn, pic));
FIBITMAP p1 = FreeImage.ConvertColorDepth(p32, FREE_IMAGE_COLOR_DEPTH.FICD_04_BPP);
FreeImage.Save(FREE_IMAGE_FORMAT.FIF_TIFF, p1, fn + ".tif", FREE_IMAGE_SAVE_FLAGS.TIFF_LZW);
FreeImage.Unload(p1);
FreeImage.Unload(p32);
}
{
String fn = "4bpp-PACKBITS";
FIBITMAP p32 = FreeImage.CreateFromBitmap(Draws(fn, pic));
FIBITMAP p1 = FreeImage.ConvertColorDepth(p32, FREE_IMAGE_COLOR_DEPTH.FICD_04_BPP);
FreeImage.Save(FREE_IMAGE_FORMAT.FIF_TIFF, p1, fn + ".tif", FREE_IMAGE_SAVE_FLAGS.TIFF_PACKBITS);
FreeImage.Unload(p1);
FreeImage.Unload(p32);
}
{
String fn = "4bpp-ADOBE_DEFLATE";
FIBITMAP p32 = FreeImage.CreateFromBitmap(Draws(fn, pic));
FIBITMAP p1 = FreeImage.ConvertColorDepth(p32, FREE_IMAGE_COLOR_DEPTH.FICD_04_BPP);
FreeImage.Save(FREE_IMAGE_FORMAT.FIF_TIFF, p1, fn + ".tif", FREE_IMAGE_SAVE_FLAGS.TIFF_ADOBE_DEFLATE);
FreeImage.Unload(p1);
FreeImage.Unload(p32);
}
{
String fn = "8bpp-DEFLATE";
FIBITMAP p32 = FreeImage.CreateFromBitmap(Draws(fn, pic));
FIBITMAP p1 = FreeImage.ConvertColorDepth(p32, FREE_IMAGE_COLOR_DEPTH.FICD_08_BPP);
FreeImage.Save(FREE_IMAGE_FORMAT.FIF_TIFF, p1, fn + ".tif", FREE_IMAGE_SAVE_FLAGS.TIFF_DEFLATE);
FreeImage.Unload(p1);
FreeImage.Unload(p32);
}
{
String fn = "8bpp-LZW";
FIBITMAP p32 = FreeImage.CreateFromBitmap(Draws(fn, pic));
FIBITMAP p1 = FreeImage.ConvertColorDepth(p32, FREE_IMAGE_COLOR_DEPTH.FICD_08_BPP);
FreeImage.Save(FREE_IMAGE_FORMAT.FIF_TIFF, p1, fn + ".tif", FREE_IMAGE_SAVE_FLAGS.TIFF_LZW);
FreeImage.Unload(p1);
FreeImage.Unload(p32);
}
{
String fn = "8bpp-PACKBITS";
FIBITMAP p32 = FreeImage.CreateFromBitmap(Draws(fn, pic));
FIBITMAP p1 = FreeImage.ConvertColorDepth(p32, FREE_IMAGE_COLOR_DEPTH.FICD_08_BPP);
FreeImage.Save(FREE_IMAGE_FORMAT.FIF_TIFF, p1, fn + ".tif", FREE_IMAGE_SAVE_FLAGS.TIFF_PACKBITS);
FreeImage.Unload(p1);
FreeImage.Unload(p32);
}
{
String fn = "8bpp-ADOBE_DEFLATE";
FIBITMAP p32 = FreeImage.CreateFromBitmap(Draws(fn, pic));
FIBITMAP p1 = FreeImage.ConvertColorDepth(p32, FREE_IMAGE_COLOR_DEPTH.FICD_08_BPP);
FreeImage.Save(FREE_IMAGE_FORMAT.FIF_TIFF, p1, fn + ".tif", FREE_IMAGE_SAVE_FLAGS.TIFF_ADOBE_DEFLATE);
FreeImage.Unload(p1);
FreeImage.Unload(p32);
}
{
String fn = "8bppGrayscale-JPEG";
FIBITMAP p32 = FreeImage.CreateFromBitmap(Draws(fn, pic));
FIBITMAP p1 = FreeImage.ConvertColorDepth(p32, FREE_IMAGE_COLOR_DEPTH.FICD_08_BPP | FREE_IMAGE_COLOR_DEPTH.FICD_FORCE_GREYSCALE);
FreeImage.Save(FREE_IMAGE_FORMAT.FIF_TIFF, p1, fn + ".tif", FREE_IMAGE_SAVE_FLAGS.TIFF_JPEG);
FreeImage.Unload(p1);
FreeImage.Unload(p32);
}
{
String fn = "24bpp-DEFLATE";
FIBITMAP p32 = FreeImage.CreateFromBitmap(Draws(fn, pic));
FIBITMAP p1 = FreeImage.ConvertColorDepth(p32, FREE_IMAGE_COLOR_DEPTH.FICD_24_BPP);
FreeImage.Save(FREE_IMAGE_FORMAT.FIF_TIFF, p1, fn + ".tif", FREE_IMAGE_SAVE_FLAGS.TIFF_DEFLATE);
FreeImage.Unload(p1);
FreeImage.Unload(p32);
}
{
String fn = "24bpp-LZW";
FIBITMAP p32 = FreeImage.CreateFromBitmap(Draws(fn, pic));
FIBITMAP p1 = FreeImage.ConvertColorDepth(p32, FREE_IMAGE_COLOR_DEPTH.FICD_24_BPP);
FreeImage.Save(FREE_IMAGE_FORMAT.FIF_TIFF, p1, fn + ".tif", FREE_IMAGE_SAVE_FLAGS.TIFF_LZW);
FreeImage.Unload(p1);
FreeImage.Unload(p32);
}
{
String fn = "24bpp-PACKBITS";
FIBITMAP p32 = FreeImage.CreateFromBitmap(Draws(fn, pic));
FIBITMAP p1 = FreeImage.ConvertColorDepth(p32, FREE_IMAGE_COLOR_DEPTH.FICD_24_BPP);
FreeImage.Save(FREE_IMAGE_FORMAT.FIF_TIFF, p1, fn + ".tif", FREE_IMAGE_SAVE_FLAGS.TIFF_PACKBITS);
FreeImage.Unload(p1);
FreeImage.Unload(p32);
}
{
String fn = "24bpp-ADOBE_DEFLATE";
FIBITMAP p32 = FreeImage.CreateFromBitmap(Draws(fn, pic));
FIBITMAP p1 = FreeImage.ConvertColorDepth(p32, FREE_IMAGE_COLOR_DEPTH.FICD_24_BPP);
FreeImage.Save(FREE_IMAGE_FORMAT.FIF_TIFF, p1, fn + ".tif", FREE_IMAGE_SAVE_FLAGS.TIFF_ADOBE_DEFLATE);
FreeImage.Unload(p1);
FreeImage.Unload(p32);
}
{
String fn = "24bpp-JPEG";
FIBITMAP p32 = FreeImage.CreateFromBitmap(Draws(fn, pic));
FIBITMAP p1 = FreeImage.ConvertColorDepth(p32, FREE_IMAGE_COLOR_DEPTH.FICD_24_BPP);
FreeImage.Save(FREE_IMAGE_FORMAT.FIF_TIFF, p1, fn + ".tif", FREE_IMAGE_SAVE_FLAGS.TIFF_JPEG);
FreeImage.Unload(p1);
FreeImage.Unload(p32);
}
{
String fn = "32bpp-DEFLATE";
FIBITMAP p1 = FreeImage.CreateFromBitmap(Draws(fn, pic));
FreeImage.Save(FREE_IMAGE_FORMAT.FIF_TIFF, p1, fn + ".tif", FREE_IMAGE_SAVE_FLAGS.TIFF_DEFLATE);
FreeImage.Unload(p1);
}
{
String fn = "32bpp-LZW";
FIBITMAP p1 = FreeImage.CreateFromBitmap(Draws(fn, pic));
FreeImage.Save(FREE_IMAGE_FORMAT.FIF_TIFF, p1, fn + ".tif", FREE_IMAGE_SAVE_FLAGS.TIFF_LZW);
FreeImage.Unload(p1);
}
{
String fn = "32bpp-PACKBITS";
FIBITMAP p1 = FreeImage.CreateFromBitmap(Draws(fn, pic));
FreeImage.Save(FREE_IMAGE_FORMAT.FIF_TIFF, p1, fn + ".tif", FREE_IMAGE_SAVE_FLAGS.TIFF_PACKBITS);
FreeImage.Unload(p1);
}
{
String fn = "32bpp-ADOBE_DEFLATE";
FIBITMAP p1 = FreeImage.CreateFromBitmap(Draws(fn, pic));
FreeImage.Save(FREE_IMAGE_FORMAT.FIF_TIFF, p1, fn + ".tif", FREE_IMAGE_SAVE_FLAGS.TIFF_ADOBE_DEFLATE);
FreeImage.Unload(p1);
}
{
String fn = "8bppGrayscale-JPEG-ExtraSamples";
FIBITMAP p1 = FreeImage.CreateFromBitmap(Draws(fn, pic));
//FreeImage.Save(FREE_IMAGE_FORMAT.FIF_TIFF, p1, fn + ".tif", FREE_IMAGE_SAVE_FLAGS.TIFF_LZW);
FreeImage.Unload(p1);
}
StringWriter wr = new StringWriter();
foreach (String fp in Directory.GetFiles(".", "*.tif"))
{
wr.WriteLine(Resources.Templ
.Replace("*", Path.GetFileName(fp))
.Replace("?", Path.GetFileName(fp))
);
}
File.WriteAllText("Templ.txt", wr.ToString());
}