Changing System.Drawing.Bitmap.Palette

I have a TIFF file in memory, which I obtained by a variant of the following code:

Image myImage = Image.FromFile("somefile.tiff");

Currently, myImage.Palette only returns two colors, black and white. I would like to expand this to include the entire color spectrum. However, myImage.Palette does not have a function to add addition开发者_开发问答al colors.

Can someone help give my TIFFs some color? Thanks.

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You can try to use the Clone method to clone the bitmap to Format8bppIndexed