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Java Source Code

//
// This file is auto-generated. Please don't modify it!
///*from   w w  w .j  a va  2s  . co  m*/
package org.opencv.highgui;

import java.lang.String;
import org.opencv.core.Mat;
import org.opencv.core.MatOfByte;
import org.opencv.core.MatOfInt;

public class Highgui {

    public static final int
            CV_FONT_LIGHT = 25,
            CV_FONT_NORMAL = 50,
            CV_FONT_DEMIBOLD = 63,
            CV_FONT_BOLD = 75,
            CV_FONT_BLACK = 87,
            CV_STYLE_NORMAL = 0,
            CV_STYLE_ITALIC = 1,
            CV_STYLE_OBLIQUE = 2,
            CV_LOAD_IMAGE_UNCHANGED = -1,
            CV_LOAD_IMAGE_GRAYSCALE = 0,
            CV_LOAD_IMAGE_COLOR = 1,
            CV_LOAD_IMAGE_ANYDEPTH = 2,
            CV_LOAD_IMAGE_ANYCOLOR = 4,
            CV_IMWRITE_JPEG_QUALITY = 1,
            CV_IMWRITE_PNG_COMPRESSION = 16,
            CV_IMWRITE_PNG_STRATEGY = 17,
            CV_IMWRITE_PNG_BILEVEL = 18,
            CV_IMWRITE_PNG_STRATEGY_DEFAULT = 0,
            CV_IMWRITE_PNG_STRATEGY_FILTERED = 1,
            CV_IMWRITE_PNG_STRATEGY_HUFFMAN_ONLY = 2,
            CV_IMWRITE_PNG_STRATEGY_RLE = 3,
            CV_IMWRITE_PNG_STRATEGY_FIXED = 4,
            CV_IMWRITE_PXM_BINARY = 32,
            CV_CVTIMG_FLIP = 1,
            CV_CVTIMG_SWAP_RB = 2,
            CV_CAP_MSMF = 1400,
            CV_CAP_ANDROID = 1000,
            CV_CAP_ANDROID_BACK = CV_CAP_ANDROID+99,
            CV_CAP_ANDROID_FRONT = CV_CAP_ANDROID+98,
            CV_CAP_XIAPI = 1100,
            CV_CAP_AVFOUNDATION = 1200,
            CV_CAP_GIGANETIX = 1300,
            CV_CAP_PROP_FRAME_WIDTH = 3,
            CV_CAP_PROP_FRAME_HEIGHT = 4,
            CV_CAP_PROP_ZOOM = 27,
            CV_CAP_PROP_FOCUS = 28,
            CV_CAP_PROP_GUID = 29,
            CV_CAP_PROP_ISO_SPEED = 30,
            CV_CAP_PROP_BACKLIGHT = 32,
            CV_CAP_PROP_PAN = 33,
            CV_CAP_PROP_TILT = 34,
            CV_CAP_PROP_ROLL = 35,
            CV_CAP_PROP_IRIS = 36,
            CV_CAP_PROP_SETTINGS = 37,
            CV_CAP_PROP_AUTOGRAB = 1024,
            CV_CAP_PROP_PREVIEW_FORMAT = 1026,
            CV_CAP_PROP_XI_DOWNSAMPLING = 400,
            CV_CAP_PROP_XI_DATA_FORMAT = 401,
            CV_CAP_PROP_XI_OFFSET_X = 402,
            CV_CAP_PROP_XI_OFFSET_Y = 403,
            CV_CAP_PROP_XI_TRG_SOURCE = 404,
            CV_CAP_PROP_XI_TRG_SOFTWARE = 405,
            CV_CAP_PROP_XI_GPI_SELECTOR = 406,
            CV_CAP_PROP_XI_GPI_MODE = 407,
            CV_CAP_PROP_XI_GPI_LEVEL = 408,
            CV_CAP_PROP_XI_GPO_SELECTOR = 409,
            CV_CAP_PROP_XI_GPO_MODE = 410,
            CV_CAP_PROP_XI_LED_SELECTOR = 411,
            CV_CAP_PROP_XI_LED_MODE = 412,
            CV_CAP_PROP_XI_MANUAL_WB = 413,
            CV_CAP_PROP_XI_AUTO_WB = 414,
            CV_CAP_PROP_XI_AEAG = 415,
            CV_CAP_PROP_XI_EXP_PRIORITY = 416,
            CV_CAP_PROP_XI_AE_MAX_LIMIT = 417,
            CV_CAP_PROP_XI_AG_MAX_LIMIT = 418,
            CV_CAP_PROP_XI_AEAG_LEVEL = 419,
            CV_CAP_PROP_XI_TIMEOUT = 420,
            CV_CAP_PROP_ANDROID_FLASH_MODE = 8001,
            CV_CAP_PROP_ANDROID_FOCUS_MODE = 8002,
            CV_CAP_PROP_ANDROID_WHITE_BALANCE = 8003,
            CV_CAP_PROP_ANDROID_ANTIBANDING = 8004,
            CV_CAP_PROP_ANDROID_FOCAL_LENGTH = 8005,
            CV_CAP_PROP_ANDROID_FOCUS_DISTANCE_NEAR = 8006,
            CV_CAP_PROP_ANDROID_FOCUS_DISTANCE_OPTIMAL = 8007,
            CV_CAP_PROP_ANDROID_FOCUS_DISTANCE_FAR = 8008,
            CV_CAP_PROP_ANDROID_EXPOSE_LOCK = 8009,
            CV_CAP_PROP_ANDROID_WHITEBALANCE_LOCK = 8010,
            CV_CAP_PROP_IOS_DEVICE_FOCUS = 9001,
            CV_CAP_PROP_IOS_DEVICE_EXPOSURE = 9002,
            CV_CAP_PROP_IOS_DEVICE_FLASH = 9003,
            CV_CAP_PROP_IOS_DEVICE_WHITEBALANCE = 9004,
            CV_CAP_PROP_IOS_DEVICE_TORCH = 9005,
            CV_CAP_PROP_GIGA_FRAME_OFFSET_X = 10001,
            CV_CAP_PROP_GIGA_FRAME_OFFSET_Y = 10002,
            CV_CAP_PROP_GIGA_FRAME_WIDTH_MAX = 10003,
            CV_CAP_PROP_GIGA_FRAME_HEIGH_MAX = 10004,
            CV_CAP_PROP_GIGA_FRAME_SENS_WIDTH = 10005,
            CV_CAP_PROP_GIGA_FRAME_SENS_HEIGH = 10006,
            CV_CAP_PROP_INTELPERC_PROFILE_COUNT = 11001,
            CV_CAP_PROP_INTELPERC_PROFILE_IDX = 11002,
            CV_CAP_PROP_INTELPERC_DEPTH_LOW_CONFIDENCE_VALUE = 11003,
            CV_CAP_PROP_INTELPERC_DEPTH_SATURATION_VALUE = 11004,
            CV_CAP_PROP_INTELPERC_DEPTH_CONFIDENCE_THRESHOLD = 11005,
            CV_CAP_PROP_INTELPERC_DEPTH_FOCAL_LENGTH_HORZ = 11006,
            CV_CAP_PROP_INTELPERC_DEPTH_FOCAL_LENGTH_VERT = 11007,
            CV_CAP_ANDROID_COLOR_FRAME_BGR = 0,
            CV_CAP_ANDROID_COLOR_FRAME = CV_CAP_ANDROID_COLOR_FRAME_BGR,
            CV_CAP_ANDROID_GREY_FRAME = 1,
            CV_CAP_ANDROID_COLOR_FRAME_RGB = 2,
            CV_CAP_ANDROID_COLOR_FRAME_BGRA = 3,
            CV_CAP_ANDROID_COLOR_FRAME_RGBA = 4,
            CV_CAP_ANDROID_FLASH_MODE_AUTO = 0,
            CV_CAP_ANDROID_FLASH_MODE_OFF = 0+1,
            CV_CAP_ANDROID_FLASH_MODE_ON = 0+2,
            CV_CAP_ANDROID_FLASH_MODE_RED_EYE = 0+3,
            CV_CAP_ANDROID_FLASH_MODE_TORCH = 0+4,
            CV_CAP_ANDROID_FOCUS_MODE_AUTO = 0,
            CV_CAP_ANDROID_FOCUS_MODE_CONTINUOUS_PICTURE = 0+1,
            CV_CAP_ANDROID_FOCUS_MODE_CONTINUOUS_VIDEO = 0+2,
            CV_CAP_ANDROID_FOCUS_MODE_EDOF = 0+3,
            CV_CAP_ANDROID_FOCUS_MODE_FIXED = 0+4,
            CV_CAP_ANDROID_FOCUS_MODE_INFINITY = 0+5,
            CV_CAP_ANDROID_FOCUS_MODE_MACRO = 0+6,
            CV_CAP_ANDROID_WHITE_BALANCE_AUTO = 0,
            CV_CAP_ANDROID_WHITE_BALANCE_CLOUDY_DAYLIGHT = 0+1,
            CV_CAP_ANDROID_WHITE_BALANCE_DAYLIGHT = 0+2,
            CV_CAP_ANDROID_WHITE_BALANCE_FLUORESCENT = 0+3,
            CV_CAP_ANDROID_WHITE_BALANCE_INCANDESCENT = 0+4,
            CV_CAP_ANDROID_WHITE_BALANCE_SHADE = 0+5,
            CV_CAP_ANDROID_WHITE_BALANCE_TWILIGHT = 0+6,
            CV_CAP_ANDROID_WHITE_BALANCE_WARM_FLUORESCENT = 0+7,
            CV_CAP_ANDROID_ANTIBANDING_50HZ = 0,
            CV_CAP_ANDROID_ANTIBANDING_60HZ = 0+1,
            CV_CAP_ANDROID_ANTIBANDING_AUTO = 0+2,
            CV_CAP_ANDROID_ANTIBANDING_OFF = 0+3,
            IMREAD_UNCHANGED = -1,
            IMREAD_GRAYSCALE = 0,
            IMREAD_COLOR = 1,
            IMREAD_ANYDEPTH = 2,
            IMREAD_ANYCOLOR = 4,
            IMWRITE_JPEG_QUALITY = 1,
            IMWRITE_PNG_COMPRESSION = 16,
            IMWRITE_PNG_STRATEGY = 17,
            IMWRITE_PNG_BILEVEL = 18,
            IMWRITE_PNG_STRATEGY_DEFAULT = 0,
            IMWRITE_PNG_STRATEGY_FILTERED = 1,
            IMWRITE_PNG_STRATEGY_HUFFMAN_ONLY = 2,
            IMWRITE_PNG_STRATEGY_RLE = 3,
            IMWRITE_PNG_STRATEGY_FIXED = 4,
            IMWRITE_PXM_BINARY = 32;


    //
    // C++:  Mat imdecode(Mat buf, int flags)
    //

/**
 * <p>Reads an image from a buffer in memory.</p>
 *
 * <p>The function reads an image from the specified buffer in the memory.
 * If the buffer is too short or contains invalid data, the empty matrix/image
 * is returned.</p>
 *
 * <p>See "imread" for the list of supported formats and flags description.</p>
 *
 * <p>Note: In the case of color images, the decoded images will have the channels
 * stored in <code>B G R</code> order.</p>
 *
 * @param buf Input array or vector of bytes.
 * @param flags The same flags as in "imread".
 *
 * @see <a href="http://docs.opencv.org/modules/highgui/doc/reading_and_writing_images_and_video.html#imdecode">org.opencv.highgui.Highgui.imdecode</a>
 */
    public static Mat imdecode(Mat buf, int flags)
    {

        Mat retVal = new Mat(imdecode_0(buf.nativeObj, flags));

        return retVal;
    }


    //
    // C++:  bool imencode(string ext, Mat img, vector_uchar& buf, vector_int params = vector<int>())
    //

/**
 * <p>Encodes an image into a memory buffer.</p>
 *
 * <p>The function compresses the image and stores it in the memory buffer that is
 * resized to fit the result.
 * See "imwrite" for the list of supported formats and flags description.</p>
 *
 * <p>Note: <code>cvEncodeImage</code> returns single-row matrix of type
 * <code>CV_8UC1</code> that contains encoded image as array of bytes.</p>
 *
 * @param ext File extension that defines the output format.
 * @param img Image to be written.
 * @param buf Output buffer resized to fit the compressed image.
 * @param params Format-specific parameters. See "imwrite".
 *
 * @see <a href="http://docs.opencv.org/modules/highgui/doc/reading_and_writing_images_and_video.html#imencode">org.opencv.highgui.Highgui.imencode</a>
 */
    public static boolean imencode(String ext, Mat img, MatOfByte buf, MatOfInt params)
    {
        Mat buf_mat = buf;
        Mat params_mat = params;
        boolean retVal = imencode_0(ext, img.nativeObj, buf_mat.nativeObj, params_mat.nativeObj);

        return retVal;
    }

/**
 * <p>Encodes an image into a memory buffer.</p>
 *
 * <p>The function compresses the image and stores it in the memory buffer that is
 * resized to fit the result.
 * See "imwrite" for the list of supported formats and flags description.</p>
 *
 * <p>Note: <code>cvEncodeImage</code> returns single-row matrix of type
 * <code>CV_8UC1</code> that contains encoded image as array of bytes.</p>
 *
 * @param ext File extension that defines the output format.
 * @param img Image to be written.
 * @param buf Output buffer resized to fit the compressed image.
 *
 * @see <a href="http://docs.opencv.org/modules/highgui/doc/reading_and_writing_images_and_video.html#imencode">org.opencv.highgui.Highgui.imencode</a>
 */
    public static boolean imencode(String ext, Mat img, MatOfByte buf)
    {
        Mat buf_mat = buf;
        boolean retVal = imencode_1(ext, img.nativeObj, buf_mat.nativeObj);

        return retVal;
    }


    //
    // C++:  Mat imread(string filename, int flags = 1)
    //

/**
 * <p>Loads an image from a file.</p>
 *
 * <p>The function <code>imread</code> loads an image from the specified file and
 * returns it. If the image cannot be read (because of missing file, improper
 * permissions, unsupported or invalid format), the function returns an empty
 * matrix (<code>Mat.data==NULL</code>). Currently, the following file formats
 * are supported:</p>
 * <ul>
 *   <li> Windows bitmaps - <code>*.bmp, *.dib</code> (always supported)
 *   <li> JPEG files - <code>*.jpeg, *.jpg, *.jpe</code> (see the *Notes*
 * section)
 *   <li> JPEG 2000 files - <code>*.jp2</code> (see the *Notes* section)
 *   <li> Portable Network Graphics - <code>*.png</code> (see the *Notes*
 * section)
 *   <li> Portable image format - <code>*.pbm, *.pgm, *.ppm</code> (always
 * supported)
 *   <li> Sun rasters - <code>*.sr, *.ras</code> (always supported)
 *   <li> TIFF files - <code>*.tiff, *.tif</code> (see the *Notes* section)
 * </ul>
 *
 * <p>Note:</p>
 * <ul>
 *   <li> The function determines the type of an image by the content, not by
 * the file extension.
 *   <li> On Microsoft Windows* OS and MacOSX*, the codecs shipped with an
 * OpenCV image (libjpeg, libpng, libtiff, and libjasper) are used by default.
 * So, OpenCV can always read JPEGs, PNGs, and TIFFs. On MacOSX, there is also
 * an option to use native MacOSX image readers. But beware that currently these
 * native image loaders give images with different pixel values because of the
 * color management embedded into MacOSX.
 *   <li> On Linux*, BSD flavors and other Unix-like open-source operating
 * systems, OpenCV looks for codecs supplied with an OS image. Install the
 * relevant packages (do not forget the development files, for example,
 * "libjpeg-dev", in Debian* and Ubuntu*) to get the codec support or turn on
 * the <code>OPENCV_BUILD_3RDPARTY_LIBS</code> flag in CMake.
 * </ul>
 *
 * <p>Note: In the case of color images, the decoded images will have the channels
 * stored in <code>B G R</code> order.</p>
 *
 * @param filename Name of file to be loaded.
 * @param flags Flags specifying the color type of a loaded image:
 * <ul>
 *   <li> CV_LOAD_IMAGE_ANYDEPTH - If set, return 16-bit/32-bit image when the
 * input has the corresponding depth, otherwise convert it to 8-bit.
 *   <li> CV_LOAD_IMAGE_COLOR - If set, always convert image to the color one
 *   <li> CV_LOAD_IMAGE_GRAYSCALE - If set, always convert image to the
 * grayscale one
 *   <li> >0 Return a 3-channel color image.
 * </ul>
 * <p>Note: In the current implementation the alpha channel, if any, is stripped
 * from the output image. Use negative value if you need the alpha channel.</p>
 * <ul>
 *   <li> =0 Return a grayscale image.
 *   <li> <0 Return the loaded image as is (with alpha channel).
 * </ul>
 *
 * @see <a href="http://docs.opencv.org/modules/highgui/doc/reading_and_writing_images_and_video.html#imread">org.opencv.highgui.Highgui.imread</a>
 */
    public static Mat imread(String filename, int flags)
    {

        Mat retVal = new Mat(imread_0(filename, flags));

        return retVal;
    }

/**
 * <p>Loads an image from a file.</p>
 *
 * <p>The function <code>imread</code> loads an image from the specified file and
 * returns it. If the image cannot be read (because of missing file, improper
 * permissions, unsupported or invalid format), the function returns an empty
 * matrix (<code>Mat.data==NULL</code>). Currently, the following file formats
 * are supported:</p>
 * <ul>
 *   <li> Windows bitmaps - <code>*.bmp, *.dib</code> (always supported)
 *   <li> JPEG files - <code>*.jpeg, *.jpg, *.jpe</code> (see the *Notes*
 * section)
 *   <li> JPEG 2000 files - <code>*.jp2</code> (see the *Notes* section)
 *   <li> Portable Network Graphics - <code>*.png</code> (see the *Notes*
 * section)
 *   <li> Portable image format - <code>*.pbm, *.pgm, *.ppm</code> (always
 * supported)
 *   <li> Sun rasters - <code>*.sr, *.ras</code> (always supported)
 *   <li> TIFF files - <code>*.tiff, *.tif</code> (see the *Notes* section)
 * </ul>
 *
 * <p>Note:</p>
 * <ul>
 *   <li> The function determines the type of an image by the content, not by
 * the file extension.
 *   <li> On Microsoft Windows* OS and MacOSX*, the codecs shipped with an
 * OpenCV image (libjpeg, libpng, libtiff, and libjasper) are used by default.
 * So, OpenCV can always read JPEGs, PNGs, and TIFFs. On MacOSX, there is also
 * an option to use native MacOSX image readers. But beware that currently these
 * native image loaders give images with different pixel values because of the
 * color management embedded into MacOSX.
 *   <li> On Linux*, BSD flavors and other Unix-like open-source operating
 * systems, OpenCV looks for codecs supplied with an OS image. Install the
 * relevant packages (do not forget the development files, for example,
 * "libjpeg-dev", in Debian* and Ubuntu*) to get the codec support or turn on
 * the <code>OPENCV_BUILD_3RDPARTY_LIBS</code> flag in CMake.
 * </ul>
 *
 * <p>Note: In the case of color images, the decoded images will have the channels
 * stored in <code>B G R</code> order.</p>
 *
 * @param filename Name of file to be loaded.
 *
 * @see <a href="http://docs.opencv.org/modules/highgui/doc/reading_and_writing_images_and_video.html#imread">org.opencv.highgui.Highgui.imread</a>
 */
    public static Mat imread(String filename)
    {

        Mat retVal = new Mat(imread_1(filename));

        return retVal;
    }


    //
    // C++:  bool imwrite(string filename, Mat img, vector_int params = vector<int>())
    //

/**
 * <p>Saves an image to a specified file.</p>
 *
 * <p>The function <code>imwrite</code> saves the image to the specified file. The
 * image format is chosen based on the <code>filename</code> extension (see
 * "imread" for the list of extensions). Only 8-bit (or 16-bit unsigned
 * (<code>CV_16U</code>) in case of PNG, JPEG 2000, and TIFF) single-channel or
 * 3-channel (with 'BGR' channel order) images can be saved using this function.
 * If the format, depth or channel order is different, use "Mat.convertTo", and
 * "cvtColor" to convert it before saving. Or, use the universal "FileStorage"
 * I/O functions to save the image to XML or YAML format.
 * It is possible to store PNG images with an alpha channel using this function.
 * To do this, create 8-bit (or 16-bit) 4-channel image BGRA, where the alpha
 * channel goes last. Fully transparent pixels should have alpha set to 0, fully
 * opaque pixels should have alpha set to 255/65535. The sample below shows how
 * to create such a BGRA image and store to PNG file. It also demonstrates how
 * to set custom compression parameters <code></p>
 *
 * <p>// C++ code:</p>
 *
 * <p>#include <vector></p>
 *
 * <p>#include <stdio.h></p>
 *
 * <p>#include <opencv2/opencv.hpp></p>
 *
 * <p>using namespace cv;</p>
 *
 * <p>using namespace std;</p>
 *
 * <p>void createAlphaMat(Mat &mat)</p>
 *
 *
 * <p>for (int i = 0; i < mat.rows; ++i) {</p>
 *
 * <p>for (int j = 0; j < mat.cols; ++j) {</p>
 *
 * <p>Vec4b& rgba = mat.at<Vec4b>(i, j);</p>
 *
 * <p>rgba[0] = UCHAR_MAX;</p>
 *
 * <p>rgba[1] = saturate_cast<uchar>((float (mat.cols - j)) / ((float)mat.cols) *
 * UCHAR_MAX);</p>
 *
 * <p>rgba[2] = saturate_cast<uchar>((float (mat.rows - i)) / ((float)mat.rows) *
 * UCHAR_MAX);</p>
 *
 * <p>rgba[3] = saturate_cast<uchar>(0.5 * (rgba[1] + rgba[2]));</p>
 *
 *
 *
 *
 * <p>int main(int argv, char argc)</p>
 *
 *
 * <p>// Create mat with alpha channel</p>
 *
 * <p>Mat mat(480, 640, CV_8UC4);</p>
 *
 * <p>createAlphaMat(mat);</p>
 *
 * <p>vector<int> compression_params;</p>
 *
 * <p>compression_params.push_back(CV_IMWRITE_PNG_COMPRESSION);</p>
 *
 * <p>compression_params.push_back(9);</p>
 *
 * <p>try {</p>
 *
 * <p>imwrite("alpha.png", mat, compression_params);</p>
 *
 *
 * <p>catch (runtime_error& ex) {</p>
 *
 * <p>fprintf(stderr, "Exception converting image to PNG format: %sn", ex.what());</p>
 *
 * <p>return 1;</p>
 *
 *
 * <p>fprintf(stdout, "Saved PNG file with alpha data.n");</p>
 *
 * <p>return 0;</p>
 *
 *
 * @param filename Name of the file.
 * @param img a img
 * @param params Format-specific save parameters encoded as pairs
 * <code>paramId_1, paramValue_1, paramId_2, paramValue_2,...</code>. The
 * following parameters are currently supported:
 * <ul>
 *   <li> For JPEG, it can be a quality (<code>CV_IMWRITE_JPEG_QUALITY</code>)
 * from 0 to 100 (the higher is the better). Default value is 95.
 *   <li> For PNG, it can be the compression level (<code>CV_IMWRITE_PNG_COMPRESSION</code>)
 * from 0 to 9. A higher value means a smaller size and longer compression time.
 * Default value is 3.
 *   <li> For PPM, PGM, or PBM, it can be a binary format flag (<code>CV_IMWRITE_PXM_BINARY</code>),
 * 0 or 1. Default value is 1.
 * </ul>
 *
 * @see <a href="http://docs.opencv.org/modules/highgui/doc/reading_and_writing_images_and_video.html#imwrite">org.opencv.highgui.Highgui.imwrite</a>
 */
    public static boolean imwrite(String filename, Mat img, MatOfInt params)
    {
        Mat params_mat = params;
        boolean retVal = imwrite_0(filename, img.nativeObj, params_mat.nativeObj);

        return retVal;
    }

/**
 * <p>Saves an image to a specified file.</p>
 *
 * <p>The function <code>imwrite</code> saves the image to the specified file. The
 * image format is chosen based on the <code>filename</code> extension (see
 * "imread" for the list of extensions). Only 8-bit (or 16-bit unsigned
 * (<code>CV_16U</code>) in case of PNG, JPEG 2000, and TIFF) single-channel or
 * 3-channel (with 'BGR' channel order) images can be saved using this function.
 * If the format, depth or channel order is different, use "Mat.convertTo", and
 * "cvtColor" to convert it before saving. Or, use the universal "FileStorage"
 * I/O functions to save the image to XML or YAML format.
 * It is possible to store PNG images with an alpha channel using this function.
 * To do this, create 8-bit (or 16-bit) 4-channel image BGRA, where the alpha
 * channel goes last. Fully transparent pixels should have alpha set to 0, fully
 * opaque pixels should have alpha set to 255/65535. The sample below shows how
 * to create such a BGRA image and store to PNG file. It also demonstrates how
 * to set custom compression parameters <code></p>
 *
 * <p>// C++ code:</p>
 *
 * <p>#include <vector></p>
 *
 * <p>#include <stdio.h></p>
 *
 * <p>#include <opencv2/opencv.hpp></p>
 *
 * <p>using namespace cv;</p>
 *
 * <p>using namespace std;</p>
 *
 * <p>void createAlphaMat(Mat &mat)</p>
 *
 *
 * <p>for (int i = 0; i < mat.rows; ++i) {</p>
 *
 * <p>for (int j = 0; j < mat.cols; ++j) {</p>
 *
 * <p>Vec4b& rgba = mat.at<Vec4b>(i, j);</p>
 *
 * <p>rgba[0] = UCHAR_MAX;</p>
 *
 * <p>rgba[1] = saturate_cast<uchar>((float (mat.cols - j)) / ((float)mat.cols) *
 * UCHAR_MAX);</p>
 *
 * <p>rgba[2] = saturate_cast<uchar>((float (mat.rows - i)) / ((float)mat.rows) *
 * UCHAR_MAX);</p>
 *
 * <p>rgba[3] = saturate_cast<uchar>(0.5 * (rgba[1] + rgba[2]));</p>
 *
 *
 *
 *
 * <p>int main(int argv, char argc)</p>
 *
 *
 * <p>// Create mat with alpha channel</p>
 *
 * <p>Mat mat(480, 640, CV_8UC4);</p>
 *
 * <p>createAlphaMat(mat);</p>
 *
 * <p>vector<int> compression_params;</p>
 *
 * <p>compression_params.push_back(CV_IMWRITE_PNG_COMPRESSION);</p>
 *
 * <p>compression_params.push_back(9);</p>
 *
 * <p>try {</p>
 *
 * <p>imwrite("alpha.png", mat, compression_params);</p>
 *
 *
 * <p>catch (runtime_error& ex) {</p>
 *
 * <p>fprintf(stderr, "Exception converting image to PNG format: %sn", ex.what());</p>
 *
 * <p>return 1;</p>
 *
 *
 * <p>fprintf(stdout, "Saved PNG file with alpha data.n");</p>
 *
 * <p>return 0;</p>
 *
 *
 * @param filename Name of the file.
 * @param img a img
 *
 * @see <a href="http://docs.opencv.org/modules/highgui/doc/reading_and_writing_images_and_video.html#imwrite">org.opencv.highgui.Highgui.imwrite</a>
 */
    public static boolean imwrite(String filename, Mat img)
    {

        boolean retVal = imwrite_1(filename, img.nativeObj);

        return retVal;
    }




    // C++:  Mat imdecode(Mat buf, int flags)
    private static native long imdecode_0(long buf_nativeObj, int flags);

    // C++:  bool imencode(string ext, Mat img, vector_uchar& buf, vector_int params = vector<int>())
    private static native boolean imencode_0(String ext, long img_nativeObj, long buf_mat_nativeObj, long params_mat_nativeObj);
    private static native boolean imencode_1(String ext, long img_nativeObj, long buf_mat_nativeObj);

    // C++:  Mat imread(string filename, int flags = 1)
    private static native long imread_0(String filename, int flags);
    private static native long imread_1(String filename);

    // C++:  bool imwrite(string filename, Mat img, vector_int params = vector<int>())
    private static native boolean imwrite_0(String filename, long img_nativeObj, long params_mat_nativeObj);
    private static native boolean imwrite_1(String filename, long img_nativeObj);

}




Java Source Code List

com.floatlearning.android_opencv_template.MainActivity.java
org.opencv.android.AsyncServiceHelper.java
org.opencv.android.BaseLoaderCallback.java
org.opencv.android.CameraBridgeViewBase.java
org.opencv.android.FpsMeter.java
org.opencv.android.InstallCallbackInterface.java
org.opencv.android.JavaCameraView.java
org.opencv.android.LoaderCallbackInterface.java
org.opencv.android.NativeCameraView.java
org.opencv.android.OpenCVLoader.java
org.opencv.android.StaticHelper.java
org.opencv.android.Utils.java
org.opencv.calib3d.Calib3d.java
org.opencv.calib3d.StereoBM.java
org.opencv.calib3d.StereoSGBM.java
org.opencv.contrib.Contrib.java
org.opencv.contrib.FaceRecognizer.java
org.opencv.contrib.StereoVar.java
org.opencv.core.Algorithm.java
org.opencv.core.Core.java
org.opencv.core.CvException.java
org.opencv.core.CvType.java
org.opencv.core.MatOfByte.java
org.opencv.core.MatOfDMatch.java
org.opencv.core.MatOfDouble.java
org.opencv.core.MatOfFloat4.java
org.opencv.core.MatOfFloat6.java
org.opencv.core.MatOfFloat.java
org.opencv.core.MatOfInt4.java
org.opencv.core.MatOfInt.java
org.opencv.core.MatOfKeyPoint.java
org.opencv.core.MatOfPoint2f.java
org.opencv.core.MatOfPoint3.java
org.opencv.core.MatOfPoint3f.java
org.opencv.core.MatOfPoint.java
org.opencv.core.MatOfRect.java
org.opencv.core.Mat.java
org.opencv.core.Point3.java
org.opencv.core.Point.java
org.opencv.core.Range.java
org.opencv.core.Rect.java
org.opencv.core.RotatedRect.java
org.opencv.core.Scalar.java
org.opencv.core.Size.java
org.opencv.core.TermCriteria.java
org.opencv.features2d.DMatch.java
org.opencv.features2d.DescriptorExtractor.java
org.opencv.features2d.DescriptorMatcher.java
org.opencv.features2d.FeatureDetector.java
org.opencv.features2d.Features2d.java
org.opencv.features2d.GenericDescriptorMatcher.java
org.opencv.features2d.KeyPoint.java
org.opencv.gpu.DeviceInfo.java
org.opencv.gpu.Gpu.java
org.opencv.gpu.TargetArchs.java
org.opencv.highgui.Highgui.java
org.opencv.highgui.VideoCapture.java
org.opencv.imgproc.CLAHE.java
org.opencv.imgproc.Imgproc.java
org.opencv.imgproc.Moments.java
org.opencv.imgproc.Subdiv2D.java
org.opencv.ml.CvANN_MLP_TrainParams.java
org.opencv.ml.CvANN_MLP.java
org.opencv.ml.CvBoostParams.java
org.opencv.ml.CvBoost.java
org.opencv.ml.CvDTreeParams.java
org.opencv.ml.CvDTree.java
org.opencv.ml.CvERTrees.java
org.opencv.ml.CvGBTreesParams.java
org.opencv.ml.CvGBTrees.java
org.opencv.ml.CvKNearest.java
org.opencv.ml.CvNormalBayesClassifier.java
org.opencv.ml.CvParamGrid.java
org.opencv.ml.CvRTParams.java
org.opencv.ml.CvRTrees.java
org.opencv.ml.CvSVMParams.java
org.opencv.ml.CvSVM.java
org.opencv.ml.CvStatModel.java
org.opencv.ml.EM.java
org.opencv.ml.Ml.java
org.opencv.objdetect.CascadeClassifier.java
org.opencv.objdetect.HOGDescriptor.java
org.opencv.objdetect.Objdetect.java
org.opencv.photo.Photo.java
org.opencv.utils.Converters.java
org.opencv.video.BackgroundSubtractorMOG2.java
org.opencv.video.BackgroundSubtractorMOG.java
org.opencv.video.BackgroundSubtractor.java
org.opencv.video.KalmanFilter.java
org.opencv.video.Video.java