Databases
StackOverflow2013
Postsdbo
PODisplay IplImage as Android Bitmap
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PODisplay IplImage as Android Bitmap
    primarykey
    data
    text
    <p>I'm working on a facedetect Android application which uses the OpenCV 2.3.1 library. I've found some code which allow me to make a photo on my Samsung GT-P1000 and save it in the gallery. Then I want to select the image from the gallery which allows a .cpp file to use OpenCV functions. This requires a bitmap to IplImage conversion (the .java and .cpp code snippets are added below).</p> <p><strong>The java code looks like this:</strong></p> <pre><code>Bitmap bitmap = BitmapFactory.decodeFile(mCurrentImagePath); Log.i(TAG, mCurrentImagePath); int width = bitmap.getWidth(); int height = bitmap.getHeight(); int[] pixels = new int[width * height]; bitmap.getPixels(pixels, 0, width, 0, 0, width, height); opencv.setSourceImage(pixels, width, height); byte[] imageData = opencv.getSourceImage(); bitmap = BitmapFactory.decodeByteArray(imageData, 0, imageData.length); mImageView.setImageBitmap(bitmap); </code></pre> <p><strong>The C++ code looks like this:</strong></p> <pre><code>IplImage * pImage = NULL; IplImage * loadpixels(int * pixels, int width, int height); IplImage * getIplImageFromIntArray (JNIEnv* env, jintArray array_data, jint width, jint height); JNIEXPORT jboolean JNICALL Java_org_opencv_example_pruts_Test1OpenCV_setSourceImage (JNIEnv * env, jobject thiz, jintArray photo_data, jint width, jint height) { if(pImage != NULL) { cvReleaseImage(&amp;pImage); pImage = NULL; } pImage = getIplImageFromIntArray(env, photo_data, width, height); if(pImage == 0) { return 0; } return 1; } </code></pre> <p>However I need another JNIEXPORT function which converts the IplImage to bitmap data. Therefor the last 4 lines of code will be used. imageData should be filled so BitmapFactory can decode it. I came across load of examples and these code snippets come from those as well. However I'm not able to find a solution for my problem. Does anyone has some suggestions?</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USMichal Kottman
    1. USpimmes111
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. PODisplay IplImage as Android Bitmap
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PODisplay IplImage as Android Bitmap
      1. This table or related slice is empty.
      1. VTUpMod
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload