org.opencv.android.Utils类的使用及代码示例

x33g5p2x  于2022-02-01 转载在 其他  
字(10.1k)|赞(0)|评价(0)|浏览(184)

本文整理了Java中org.opencv.android.Utils类的一些代码示例，展示了Utils类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Utils类的具体详情如下：
包路径：org.opencv.android.Utils
类名称：Utils

Utils介绍

暂无

代码示例

代码示例来源：origin: kongqw/OpenCVForAndroid

/**
 * Short form of the <b>matToBitmap(mat, bmp, premultiplyAlpha=false)</b>
 * @param mat is a valid input Mat object of the types 'CV_8UC1', 'CV_8UC3' or 'CV_8UC4'.
 * @param bmp is a valid Bitmap object of the same size as the Mat and of type 'ARGB_8888' or 'RGB_565'.
 */
public static void matToBitmap(Mat mat, Bitmap bmp) {
  matToBitmap(mat, bmp, false);
}

代码示例来源：origin: akshika47/OpencvAndroid

/**
 * Short form of the bitmapToMat(bmp, mat, unPremultiplyAlpha=false).
 * @param bmp is a valid input Bitmap object of the type 'ARGB_8888' or 'RGB_565'.
 * @param mat is a valid output Mat object, it will be reallocated if needed, so Mat may be empty.
 */
public static void bitmapToMat(Bitmap bmp, Mat mat) {
  bitmapToMat(bmp, mat, false);
}

代码示例来源：origin: kongqw/OpenCVForAndroid

public static String exportResource(Context context, int resourceId) {
  return exportResource(context, resourceId, "OpenCV_data");
}

代码示例来源：origin: kongqw/OpenCVForAndroid

public static Mat loadResource(Context context, int resourceId) throws IOException
{
  return loadResource(context, resourceId, -1);
}

代码示例来源：origin: kongqw/OpenCVForAndroid

/**
 * Converts Android Bitmap to OpenCV Mat.
 * <p>
 * This function converts an Android Bitmap image to the OpenCV Mat.
 * <br>'ARGB_8888' and 'RGB_565' input Bitmap formats are supported.
 * <br>The output Mat is always created of the same size as the input Bitmap and of the 'CV_8UC4' type,
 * it keeps the image in RGBA format.
 * <br>This function throws an exception if the conversion fails.
 * @param bmp is a valid input Bitmap object of the type 'ARGB_8888' or 'RGB_565'.
 * @param mat is a valid output Mat object, it will be reallocated if needed, so it may be empty.
 * @param unPremultiplyAlpha is a flag, that determines, whether the bitmap needs to be converted from alpha premultiplied format (like Android keeps 'ARGB_8888' ones) to regular one; this flag is ignored for 'RGB_565' bitmaps.
 */
public static void bitmapToMat(Bitmap bmp, Mat mat, boolean unPremultiplyAlpha) {
  if (bmp == null)
    throw new java.lang.IllegalArgumentException("bmp == null");
  if (mat == null)
    throw new java.lang.IllegalArgumentException("mat == null");
  nBitmapToMat2(bmp, mat.nativeObj, unPremultiplyAlpha);
}

代码示例来源：origin: DuckDeck/AndroidDemo

/**
 * Converts OpenCV Mat to Android Bitmap.
 * <p>
 * <br>This function converts an image in the OpenCV Mat representation to the Android Bitmap.
 * <br>The input Mat object has to be of the types 'CV_8UC1' (gray-scale), 'CV_8UC3' (RGB) or 'CV_8UC4' (RGBA).
 * <br>The output Bitmap object has to be of the same size as the input Mat and of the types 'ARGB_8888' or 'RGB_565'.
 * <br>This function throws an exception if the conversion fails.
 *
 * @param mat is a valid input Mat object of types 'CV_8UC1', 'CV_8UC3' or 'CV_8UC4'.
 * @param bmp is a valid Bitmap object of the same size as the Mat and of type 'ARGB_8888' or 'RGB_565'.
 * @param premultiplyAlpha is a flag, that determines, whether the Mat needs to be converted to alpha premultiplied format (like Android keeps 'ARGB_8888' bitmaps); the flag is ignored for 'RGB_565' bitmaps.
 */
public static void matToBitmap(Mat mat, Bitmap bmp, boolean premultiplyAlpha) {
  if (mat == null)
    throw new java.lang.IllegalArgumentException("mat == null");
  if (bmp == null)
    throw new java.lang.IllegalArgumentException("bmp == null");
  nMatToBitmap2(mat.nativeObj, bmp, premultiplyAlpha);
}

代码示例来源：origin: InnoFang/Android-Code-Demos

private void convertGray() {
  Mat src = new Mat();
  Mat temp = new Mat();
  Mat dst = new Mat();
  Utils.bitmapToMat(selectbp, src);
  Imgproc.cvtColor(src, temp, Imgproc.COLOR_BGRA2BGR);
  Log.i("CV", "image type:" + (temp.type() == CvType.CV_8UC3));
  Imgproc.cvtColor(temp, dst, Imgproc.COLOR_BGR2GRAY);
  Utils.matToBitmap(dst, selectbp);
  myImageView.setImageBitmap(selectbp);
}

代码示例来源：origin: farkam135/GoIV

public static Mat loadResource(Context context, int resourceId) throws IOException
{
  return loadResource(context, resourceId, -1);
}

代码示例来源：origin: InnoFang/Android-Code-Demos

/**
 * Converts Android Bitmap to OpenCV Mat.
 * <p>
 * This function converts an Android Bitmap image to the OpenCV Mat.
 * <br>'ARGB_8888' and 'RGB_565' input Bitmap formats are supported.
 * <br>The output Mat is always created of the same size as the input Bitmap and of the 'CV_8UC4' type,
 * it keeps the image in RGBA format.
 * <br>This function throws an exception if the conversion fails.
 * @param bmp is a valid input Bitmap object of the type 'ARGB_8888' or 'RGB_565'.
 * @param mat is a valid output Mat object, it will be reallocated if needed, so it may be empty.
 * @param unPremultiplyAlpha is a flag, that determines, whether the bitmap needs to be converted from alpha premultiplied format (like Android keeps 'ARGB_8888' ones) to regular one; this flag is ignored for 'RGB_565' bitmaps.
 */
public static void bitmapToMat(Bitmap bmp, Mat mat, boolean unPremultiplyAlpha) {
  if (bmp == null)
    throw new java.lang.IllegalArgumentException("bmp == null");
  if (mat == null)
    throw new java.lang.IllegalArgumentException("mat == null");
  nBitmapToMat2(bmp, mat.nativeObj, unPremultiplyAlpha);
}

代码示例来源：origin: kongqw/OpenCVForAndroid

/**
 * Converts OpenCV Mat to Android Bitmap.
 * <p>
 * <br>This function converts an image in the OpenCV Mat representation to the Android Bitmap.
 * <br>The input Mat object has to be of the types 'CV_8UC1' (gray-scale), 'CV_8UC3' (RGB) or 'CV_8UC4' (RGBA).
 * <br>The output Bitmap object has to be of the same size as the input Mat and of the types 'ARGB_8888' or 'RGB_565'.
 * <br>This function throws an exception if the conversion fails.
 *
 * @param mat is a valid input Mat object of types 'CV_8UC1', 'CV_8UC3' or 'CV_8UC4'.
 * @param bmp is a valid Bitmap object of the same size as the Mat and of type 'ARGB_8888' or 'RGB_565'.
 * @param premultiplyAlpha is a flag, that determines, whether the Mat needs to be converted to alpha premultiplied format (like Android keeps 'ARGB_8888' bitmaps); the flag is ignored for 'RGB_565' bitmaps.
 */
public static void matToBitmap(Mat mat, Bitmap bmp, boolean premultiplyAlpha) {
  if (mat == null)
    throw new java.lang.IllegalArgumentException("mat == null");
  if (bmp == null)
    throw new java.lang.IllegalArgumentException("bmp == null");
  nMatToBitmap2(mat.nativeObj, bmp, premultiplyAlpha);
}

代码示例来源：origin: tz28/Chinese-number-gestures-recognition

private Bitmap scaleImage(Bitmap bitmap, int width, int height)
{
  Mat src = new Mat();
  Mat dst = new Mat();
  Utils.bitmapToMat(bitmap, src);
  //new Size(width, height)
  Imgproc.resize(src, dst, new Size(width,height),0,0,Imgproc.INTER_AREA);
  Bitmap bitmap1 = Bitmap.createBitmap(dst.cols(),dst.rows(),Bitmap.Config.RGB_565);
  Utils.matToBitmap(dst, bitmap1);
  return bitmap1;
}

代码示例来源：origin: ytai/IOIOPlotter

/**
 * Short form of the <b>matToBitmap(mat, bmp, premultiplyAlpha=false)</b>
 * @param mat is a valid input Mat object of the types 'CV_8UC1', 'CV_8UC3' or 'CV_8UC4'.
 * @param bmp is a valid Bitmap object of the same size as the Mat and of type 'ARGB_8888' or 'RGB_565'.
 */
public static void matToBitmap(Mat mat, Bitmap bmp) {
  matToBitmap(mat, bmp, false);
}

代码示例来源：origin: raulh82vlc/Image-Detection-Samples

/**
 * Short form of the bitmapToMat(bmp, mat, unPremultiplyAlpha=false).
 * @param bmp is a valid input Bitmap object of the type 'ARGB_8888' or 'RGB_565'.
 * @param mat is a valid output Mat object, it will be reallocated if needed, so Mat may be empty.
 */
public static void bitmapToMat(Bitmap bmp, Mat mat) {
  bitmapToMat(bmp, mat, false);
}

代码示例来源：origin: DuckDeck/AndroidDemo

public static String exportResource(Context context, int resourceId) {
  return exportResource(context, resourceId, "OpenCV_data");
}

代码示例来源：origin: ytai/IOIOPlotter

public static Mat loadResource(Context context, int resourceId) throws IOException
{
  return loadResource(context, resourceId, -1);
}

代码示例来源：origin: farkam135/GoIV

/**
 * Converts Android Bitmap to OpenCV Mat.
 * <p>
 * This function converts an Android Bitmap image to the OpenCV Mat.
 * <br>'ARGB_8888' and 'RGB_565' input Bitmap formats are supported.
 * <br>The output Mat is always created of the same size as the input Bitmap and of the 'CV_8UC4' type,
 * it keeps the image in RGBA format.
 * <br>This function throws an exception if the conversion fails.
 * @param bmp is a valid input Bitmap object of the type 'ARGB_8888' or 'RGB_565'.
 * @param mat is a valid output Mat object, it will be reallocated if needed, so it may be empty.
 * @param unPremultiplyAlpha is a flag, that determines, whether the bitmap needs to be converted from alpha premultiplied format (like Android keeps 'ARGB_8888' ones) to regular one; this flag is ignored for 'RGB_565' bitmaps.
 */
public static void bitmapToMat(Bitmap bmp, Mat mat, boolean unPremultiplyAlpha) {
  if (bmp == null)
    throw new java.lang.IllegalArgumentException("bmp == null");
  if (mat == null)
    throw new java.lang.IllegalArgumentException("mat == null");
  nBitmapToMat2(bmp, mat.nativeObj, unPremultiplyAlpha);
}

代码示例来源：origin: tz28/Chinese-number-gestures-recognition

/**
 * Converts OpenCV Mat to Android Bitmap.
 * <p>
 * <br>This function converts an image in the OpenCV Mat representation to the Android Bitmap.
 * <br>The input Mat object has to be of the types 'CV_8UC1' (gray-scale), 'CV_8UC3' (RGB) or 'CV_8UC4' (RGBA).
 * <br>The output Bitmap object has to be of the same size as the input Mat and of the types 'ARGB_8888' or 'RGB_565'.
 * <br>This function throws an exception if the conversion fails.
 *
 * @param mat is a valid input Mat object of types 'CV_8UC1', 'CV_8UC3' or 'CV_8UC4'.
 * @param bmp is a valid Bitmap object of the same size as the Mat and of type 'ARGB_8888' or 'RGB_565'.
 * @param premultiplyAlpha is a flag, that determines, whether the Mat needs to be converted to alpha premultiplied format (like Android keeps 'ARGB_8888' bitmaps); the flag is ignored for 'RGB_565' bitmaps.
 */
public static void matToBitmap(Mat mat, Bitmap bmp, boolean premultiplyAlpha) {
  if (mat == null)
    throw new java.lang.IllegalArgumentException("mat == null");
  if (bmp == null)
    throw new java.lang.IllegalArgumentException("bmp == null");
  nMatToBitmap2(mat.nativeObj, bmp, premultiplyAlpha);
}

代码示例来源：origin: leadrien/opencv_native_androidstudio

/**
 * Short form of the <b>matToBitmap(mat, bmp, premultiplyAlpha=false)</b>
 * @param mat is a valid input Mat object of the types 'CV_8UC1', 'CV_8UC3' or 'CV_8UC4'.
 * @param bmp is a valid Bitmap object of the same size as the Mat and of type 'ARGB_8888' or 'RGB_565'.
 */
public static void matToBitmap(Mat mat, Bitmap bmp) {
  matToBitmap(mat, bmp, false);
}

代码示例来源：origin: kongqw/OpenCVForAndroid

/**
 * Short form of the bitmapToMat(bmp, mat, unPremultiplyAlpha=false).
 * @param bmp is a valid input Bitmap object of the type 'ARGB_8888' or 'RGB_565'.
 * @param mat is a valid output Mat object, it will be reallocated if needed, so Mat may be empty.
 */
public static void bitmapToMat(Bitmap bmp, Mat mat) {
  bitmapToMat(bmp, mat, false);
}

代码示例来源：origin: ctodobom/OpenCV-3.1.0-Android

public static String exportResource(Context context, int resourceId) {
  return exportResource(context, resourceId, "OpenCV_data");
}

内容来源于网络，如有侵权，请联系作者删除！

Utils

相关文章

    查看更多

    热门标签

    更多
    JavaquerypythonNode开发语言requestUtil数据库Table后端算法LoggerMessageElementParser

    最新文章

    更多
    • 蜀ICP备13028337号-1 大数据知识库 https://www.saoniuhuo.com © All rights reserved
    • 本站内容来源互联网,如果侵犯您的权益请联系我们删除, 联系方式：448109455@qq.com