argb888与rgb888转换程序_将Android camera2 api YUV_420_888转换为RGB
时间: 2024-02-18 08:59:56 浏览: 165
好的,针对您的问题,我可以提供以下的参考代码,可以将 Android camera2 api YUV_420_888 格式的数据转换为 RGB 格式的数据:
```
private void convertYUV420ToRGB(Image imgYUV, Bitmap imgRGB) {
// Get image width and height
int width = imgYUV.getWidth();
int height = imgYUV.getHeight();
// Get Y, U, and V image planes from image
Image.Plane[] planes = imgYUV.getPlanes();
ByteBuffer bufferY = planes[0].getBuffer();
ByteBuffer bufferU = planes[1].getBuffer();
ByteBuffer bufferV = planes[2].getBuffer();
// Calculate pixel stride and row stride for Y, U, and V image planes
int pixelStrideY = planes[0].getPixelStride();
int rowStrideY = planes[0].getRowStride();
int pixelStrideU = planes[1].getPixelStride();
int rowStrideU = planes[1].getRowStride();
int pixelStrideV = planes[2].getPixelStride();
int rowStrideV = planes[2].getRowStride();
// Create arrays for storing pixel data
byte[] dataY = new byte[width * height * pixelStrideY];
byte[] dataU = new byte[width * height * pixelStrideU / 4];
byte[] dataV = new byte[width * height * pixelStrideV / 4];
// Copy pixel data from image planes into arrays
bufferY.get(dataY, 0, width * height * pixelStrideY);
bufferU.get(dataU, 0, width * height * pixelStrideU / 4);
bufferV.get(dataV, 0, width * height * pixelStrideV / 4);
// Initialize RGB pixel buffer
int[] pixels = new int[width * height];
int offset = 0;
// Loop through each row and column of pixels
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
// Get YUV pixel values for current pixel
int Y = dataY[offset] & 0xff;
int U = dataU[offset / 4] & 0xff;
int V = dataV[offset / 4] & 0xff;
// Calculate RGB pixel values for current pixel
int R = (int)(Y + 1.370705f * (V - 128));
int G = (int)(Y - 0.698001f * (V - 128) - 0.337633f * (U - 128));
int B = (int)(Y + 1.732446f * (U - 128));
// Clip RGB pixel values to range [0, 255]
R = Math.max(0, Math.min(255, R));
G = Math.max(0, Math.min(255, G));
B = Math.max(0, Math.min(255, B));
// Combine RGB pixel values into single pixel
pixels[offset++] = (0xff << 24) | (R << 16) | (G << 8) | B;
}
// Move to next row of pixels
offset += rowStrideY - width * pixelStrideY;
}
// Set RGB pixel data into Bitmap
imgRGB.setPixels(pixels, 0, width, 0, 0, width, height);
}
```
这个方法将会把 Image 对象 imgYUV 中的 YUV 数据转换为 RGB 数据,并且将其存储到 Bitmap 对象 imgRGB 中。其中,YUV 数据的格式为 YUV_420_888,RGB 数据的格式为 ARGB_8888。
注意,这个方法中的转换公式是基于 YUV420 的格式,如果您的 YUV 数据格式不同,需要根据实际情况对转换公式进行修改。
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