使用自定义相机的图像质量很差

问题描述

我正在使用自定义相机并且工作正常，但问题是图像以非常低(差)的质量保存.为了克服它，我尝试了所有建议和实现.喜欢，

I am using custom camera and working fine but the issue is image is saving with very low (poor) quality. To overcome with it , i have tried all suggestions and implementations. Like ,

parameters.setJpegQuality(100);
parameters.setPictureFormat(ImageFormat.JPEG);

这不起作用.之后我用过

this is not working. After that i have used

List<Size> sizes = cameraParams.getSupportedPictureSizes();
Camera.Size size = sizes.get(0);
for(int i=0;i<sizes.size();i++)
{
 if(sizes.get(i).width > size.width)
 size = sizes.get(i);
}
cameraParams.setPictureSize(mPictureSize.width, mPictureSize.height);

这也行不通.它的质量仍然很差.

This is also not working. Its saving with poor quality still.

注意:相机预览显示正确且质量良好，但问题在于将捕获的图像保存到 sdcard 文件夹时.

Note : Camera preview is showing proper with good quality but the issue is when saving captured image to sdcard folder.

高级帮助将不胜感激！

推荐答案

我的问题终于解决了.

在这里，我在捕获图像之前为相机预览设置 parameters

Here I was setting parameters for camera preview before i was capturing the image

 public void takePicture() {
    mCamera.takePicture(new ShutterCallback() {
        @Override
        public void onShutter() {

        }
    }, new PictureCallback() {
        @Override
        public void onPictureTaken(byte[] data, Camera camera) {

        }
    }, new PictureCallback() {
        @Override
        public void onPictureTaken(final byte[] data, Camera camera) {

            data1 = data;
            if (mCamera != null) {
                mCamera.stopPreview();
            }
        }
    });
}

所以在我在片段中调用这个函数之前，我已经在这个方法之前设置了参数.

So before i called this function in my fragment i have set parameters before this method.

mPreview.setParams(params);// This was the mistake what i have done !
mPreview.takePicture();

去掉mPreview.setParams(params);

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