基于双三次插值算法(bicubic interpolation)实现的unity图片压缩算法

原创

于 2019-12-27 18:30:28 发布 · 722 阅读

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#unity

本文探讨了如何在Unity引擎中利用双三次插值算法（bicubic interpolation）来优化图片压缩的过程，通过这种方法提高图像质量的同时降低资源占用。

如题

using UnityEngine;

public class BicubicInterpolationResizer
{
    public static Texture2D Resize(Texture2D texture , int width , int high,bool isnew=false)
    {
        
        int sWidth = texture.width;
        int sHigh = texture.height;
        float dx, dy, bmdx, bndy;
        float tx = (float) sWidth / (float) width;
        float ty = (float) sHigh / (float) high;
        var rawData = texture.GetPixels32(0);
        
        Color[] newColor = new Color[width * high];
        for (int i = 0; i < high; i++)
        {
            for (int j = 0; j < width; j++)
            {
                int x = (int) (tx * j);
                int y = (int) (ty * i);
                dx = tx * j - x;
                dy = ty * i - y;
                
                for (int k = -1; k <= 2; k++)
                {
                    bmdx = BSpline(k - dx);
                    for (int l = -1; l <= 2; l++)
                    {