[英]Create an image from byte[] using ImageSharp
I have a byte[]
and I want to create a gray-scale image using ImageSharp library. 我有一个
byte[]
,我想使用ImageSharp库创建一个灰度图像。
That is how I am doing it currently: 这就是我目前正在做的事情:
byte[] arr = MnistReader.ReadTestData(); //this gives me byte[] with 784 pixel values
ImageSharp.Image image = new ImageSharp.Image(28, 28);
for (int i = 0; i < image.Height; i++)
{
for (int j = 0; j < image.Width; j++)
{
int curPixel = j + i * image.Width;
image.Pixels[curPixel].R = arr[curPixel];
image.Pixels[curPixel].G = arr[curPixel];
image.Pixels[curPixel].B = arr[curPixel];
}
}
I wonder if there is a more elegant way to do it ? 我想知道是否有更优雅的方法?
You could do it in this way: 您可以通过以下方式进行操作:
var image = Image.Load<Rgba32>(byteArray);
image.Mutate(x => x.Grayscale());
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