Flutter 如何使用flatter对图像进行像素化？

我在屏幕上显示了一幅网络图像，想要应用块状像素效果，有人知道怎么做吗

有大量的LIB用于模糊或调整对比度/白平衡等，但似乎找不到任何东西来帮助我做其他图像效果

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干杯

我没有为自己努力，但我发现：

它只包含以下创建像素化图像的功能：

Image pixelate(Image src, int blockSize,
    {PixelateMode mode = PixelateMode.upperLeft}) {
  if (blockSize <= 1) {
    return src;
  }

  var bs = blockSize - 1;

  switch (mode) {
    case PixelateMode.upperLeft:
      for (var y = 0; y < src.height; y += blockSize) {
        for (var x = 0; x < src.width; x += blockSize) {
          if (src.boundsSafe(x, y)) {
            var c = src.getPixel(x, y);
            fillRect(src, x, y, x + bs, y + bs, c);
          }
        }
      }
      break;
    case PixelateMode.average:
      for (var y = 0; y < src.height; y += blockSize) {
        for (var x = 0; x < src.width; x += blockSize) {
          var a = 0;
          var r = 0;
          var g = 0;
          var b = 0;
          var total = 0;

          for (var cy = 0; cy < blockSize; ++cy) {
            for (var cx = 0; cx < blockSize; ++cx) {
              if (!src.boundsSafe(x + cx, y + cy)) {
                continue;
              }
              var c = src.getPixel(x + cx, y + cy);
              a += getAlpha(c);
              r += getRed(c);
              g += getGreen(c);
              b += getBlue(c);
              total++;
            }
          }

          if (total > 0) {
            var c = getColor(r ~/ total, g ~/ total, b ~/ total, a ~/ total);
            fillRect(src, x, y, x + bs, y + bs, c);
          }
        }
      }
      break;
  }

  return src;
}

图像像素化（图像src，int blockSize，
{PixelateMode=PixelateMode.upperLeft}）{
如果（块大小0）{
var c=getColor（r~/总数，g~/总数，b~/总数，a~/总数）；
fillRect（src，x，y，x+bs，y+bs，c）；
}
}
}
打破
}
返回src；
}

我没有亲自尝试，但我发现：

它只包含以下创建像素化图像的功能：

Image pixelate(Image src, int blockSize,
    {PixelateMode mode = PixelateMode.upperLeft}) {
  if (blockSize <= 1) {
    return src;
  }

  var bs = blockSize - 1;

  switch (mode) {
    case PixelateMode.upperLeft:
      for (var y = 0; y < src.height; y += blockSize) {
        for (var x = 0; x < src.width; x += blockSize) {
          if (src.boundsSafe(x, y)) {
            var c = src.getPixel(x, y);
            fillRect(src, x, y, x + bs, y + bs, c);
          }
        }
      }
      break;
    case PixelateMode.average:
      for (var y = 0; y < src.height; y += blockSize) {
        for (var x = 0; x < src.width; x += blockSize) {
          var a = 0;
          var r = 0;
          var g = 0;
          var b = 0;
          var total = 0;

          for (var cy = 0; cy < blockSize; ++cy) {
            for (var cx = 0; cx < blockSize; ++cx) {
              if (!src.boundsSafe(x + cx, y + cy)) {
                continue;
              }
              var c = src.getPixel(x + cx, y + cy);
              a += getAlpha(c);
              r += getRed(c);
              g += getGreen(c);
              b += getBlue(c);
              total++;
            }
          }

          if (total > 0) {
            var c = getColor(r ~/ total, g ~/ total, b ~/ total, a ~/ total);
            fillRect(src, x, y, x + bs, y + bs, c);
          }
        }
      }
      break;
  }

  return src;
}

图像像素化（图像src，int blockSize，
{PixelateMode=PixelateMode.upperLeft}）{
如果（块大小0）{
var c=getColor（r~/总数，g~/总数，b~/总数，a~/总数）；
fillRect（src，x，y，x+bs，y+bs，c）；
}
}
}
打破
}
返回src；
}