How to realize grayscale image and HeatMap thermal map winform with C # .net

This article introduces the relevant knowledge of "C #. Net how to achieve grayscale image and HeatMap thermal map winform". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

I. the previous article

The previous picture is the previous effect, and the next is the improved effect.

Progressive color palettes / / create color palettes, color mapping private ColorMap [] CreatePalette () {ColorMap [] colorMaps = new ColorMap [256]; List newColors = new List (); / / Color set newColors.AddRange (GetGradientColorList (Color.Red, Color.Yellow, 64)); newColors.AddRange (GetGradientColorList (Color.Yellow, Color.Green, 64)); newColors.AddRange (GetGradientColorList (Color.Green, Color.Blue, 64)) NewColors.AddRange (GetGradientColorList (Color.Blue, Color.Navy, 64)); / / Color palette display Bitmap colorBitmap = new Bitmap (colorPanel.Width, colorPanel.Height); Graphics graphic = Graphics.FromImage (colorBitmap); for (int I = 0; I < 256; iColors +) {SolidBrush solidBrush = new SolidBrush (newcolors [I]); Rectangle rectangle = new Rectangle ((int) (I * 2), 0, (int) 2, colorPanel.Height) Graphic.FillRectangle (solidBrush, rectangle); graphic.Save (); solidBrush.Dispose ();} colorPanel.BackgroundImage = colorBitmap; / / iterate through each pixel and create a new color mapping for (int X = 0; X