更改相机 2 的相机设置 API android

Question

我正在使用 android-camera2-secret-picture-taker 并获取黑暗且无法更改捕获生成器中的白平衡的图像。以下是我对 capturebuilder 所做的更改：

/**相机设置*/ // captureBuilder.set(CaptureRequest.CONTROL_MODE, CameraMetadata.CONTROL_MODE_AUTO); captureBuilder.set(CaptureRequest.JPEG_ORIENTATION, getOrientation());

    /**HDR*/
        captureBuilder.set(CaptureRequest.CONTROL_SCENE_MODE, CameraMetadata.CONTROL_SCENE_MODE_HDR);

    /**Settings for Flash*/
        captureBuilder.set(CaptureRequest.FLASH_MODE, CameraMetadata.FLASH_MODE_TORCH);

captureBuilder.set(CaptureRequest.CONTROL_AWB_MODE, CaptureRequest.CONTROL_AWB_MODE_AUTO);

/**for White Balance */
        captureBuilder.set(CaptureRequest.CONTROL_AWB_MODE, CaptureRequest.CONTROL_AWB_MODE_AUTO);
            captureBuilder.set(CaptureRequest.COLOR_CORRECTION_MODE, CaptureRequest.CONTROL_AWB_MODE_AUTO);
            captureBuilder.set(CaptureRequest.COLOR_CORRECTION_GAINS, colorTemperature(CaptureRequest.CONTROL_AWB_MODE_AUTO));

//for incandescent
            captureBuilder.set(CaptureRequest.COLOR_CORRECTION_MODE, CaptureRequest.CONTROL_AWB_MODE_INCANDESCENT);
            captureBuilder.set(CaptureRequest.COLOR_CORRECTION_GAINS, colorTemperature(CaptureRequest.CONTROL_AWB_MODE_INCANDESCENT));
//        captureBuilder.set(CaptureRequest.COLOR_CORRECTION_GAINS, CameraCapabilities.colorTemperature(Integer.parseInt(awbMode)));

//for daylight
captureBuilder.set(CaptureRequest.COLOR_CORRECTION_MODE, CaptureRequest.CONTROL_AWB_MODE_DAYLIGHT);
            captureBuilder.set(CaptureRequest.COLOR_CORRECTION_GAINS, colorTemperature(CaptureRequest.CONTROL_AWB_MODE_DAYLIGHT));
        }

//for fluorescent
captureBuilder.set(CaptureRequest.COLOR_CORRECTION_MODE, CaptureRequest.CONTROL_AWB_MODE_FLUORESCENT);
            captureBuilder.set(CaptureRequest.COLOR_CORRECTION_GAINS, colorTemperature(CaptureRequest.CONTROL_AWB_MODE_FLUORESCENT));}

//for cloudy
            captureBuilder.set(CaptureRequest.COLOR_CORRECTION_MODE, CaptureRequest.CONTROL_AWB_MODE_CLOUDY_DAYLIGHT);
            captureBuilder.set(CaptureRequest.COLOR_CORRECTION_GAINS, colorTemperature(CaptureRequest.CONTROL_AWB_MODE_CLOUDY_DAYLIGHT));

/**For ISO*/
    captureBuilder.set(CaptureRequest.CONTROL_MODE, CameraMetadata.INFO_SUPPORTED_HARDWARE_LEVEL_FULL);
    CameraCharacteristics mCameraCharacteristics = characteristics;
    List keys_list = characteristics.getKeys();
    Range<Integer> range2 = characteristics.get(CameraCharacteristics.SENSOR_INFO_SENSITIVITY_RANGE);
    int iso = ((200 * (200 - 100)) / 100 + 100);
    if (range2 != null) {
        int max1 = range2.getUpper();//10000
        int min1 = range2.getLower();//100
        iso = ((max1 * (max1 - min1)) / 100 + min1);
    }
    captureBuilder.set(CaptureRequest.SENSOR_SENSITIVITY, iso);

我无法更改亮度和除 FlashMode 之外的其他设置。

Answer 1

我相信您正在寻找 "Auto Exposure" 因为您在谈论亮度。因此，我建议您使用：

captureBuilder.set(CaptureRequest.CONTROL_AE_EXPOSURE_COMPENSATION, 4);
// play around with the "4" which is the amount of brightness you want compensate by.

更改相机 2 的相机设置 API android

Change Camera Settings for the Camera2 API android

settings

android

iso

android-camera2