Hi, Also maybe try .png format if possible.
Regards On Feb 4, 8:21 am, Romain Guy <romain...@android.com> wrote: > First make sure that both return values in the same format (Android returns > ARGB not RGBA.) Also, f I remember correctly, Java2D can apply color > profiles when loading a bitmap. > On Feb 3, 2012 11:05 AM, "Ergen" <andv...@googlemail.com> wrote: > > > > > > > > > Hi. I want to compare two images. One image is on the android client > > and another image is on the server (with Tomcat, JDK). I need also to > > calculate two histograms - one for each image - and to compare they > > > The problem is: getPixel (x, y) (on Android) and getRGB (x, y) (JDK) > > return different rgb color numbers for the point with the same > > coordinates (x, y). The images are here identical (JPG, Size: 3x3). > > > Why are the results different? And what to do? I've been looking for > > the answer everywhere, but... > > > *************************************** > > Pseudocode for Androids Activity > > *************************************** > > BitmapFactory.Options opt = new BitmapFactory.Options(); > > opt.inPreferredConfig = Bitmap.Config.ARGB_8888; > > > mBitmap = BitmapFactory.decodeFile(imageSource, opt); > > > int intColor = 0; > > for (int x = 0; x < mBitmap.getWidth(); x++) { > > for (int y = 0; y < mBitmap.getHeight(); y++) { > > intColor = mBitmap.getPixel(x, y); > > System.out.print(" ("+ x + ","+ y +") c:" + intColor); > > } > > }System.out.println(); > > > Result for example image 3x3: > > (0,0)c:-7882802 (0,1)c:-9859138 (0,2)c:-6507579 > > (1,0)c:-12883825 (1,1)c:-6574388 (1,2)c:-7948604 > > (2,0)c:-7489593 (2,1)c:-10579009 (2,2)c:-6573359 > > > ************************ > > Pseudocode for JDK > > ************************ > > BufferedImage img = ImageIO.read( file ); > > > int intColor = 0; > > for ( int x = 0; x < img.getWidth(); x++ ) { > > for ( int y = 0; y < img.getHeight(); y++ ) { > > intColor = img.getRGB( x, y ); > > System.out.print(" ("+ x + ","+ y +") c:" + intColor); > > } > > }System.out.println(); > > > Result for the same image: > > (0,0)c:-7883056 (0,1)c:-9728065 (0,2)c:-6507579 > > (1,0)c:-12818030 (1,1)c:-6377523 (1,2)c:-7883323 > > (2,0)c:-7424055 (2,1)c:-10513470 (2,2)c:-6573358 > > > -- > > You received this message because you are subscribed to the Google > > Groups "Android Developers" group. > > To post to this group, send email to android-developers@googlegroups.com > > To unsubscribe from this group, send email to > > android-developers+unsubscr...@googlegroups.com > > For more options, visit this group at > >http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en