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android Programming Glossary: grayscalehttp://stackoverflow.com/questions/11699744/face-recognition-on-android Integer.parseInt image.getName .split 0 Convert image to grayscale grayImg IplImage.create img.width img.height IPL_DEPTH_8U 1..
http://stackoverflow.com/questions/1793338/drawable-grayscale grayscale What would be the right way to turn a color Drawable into a.. would be the right way to turn a color Drawable into a grayscale one to indicate disabled state EDIT B W grayscale android drawable.. into a grayscale one to indicate disabled state EDIT B W grayscale android drawable share improve this question Apparently..
Convert a Bitmap to GrayScale in Android http://stackoverflow.com/questions/3373860/convert-a-bitmap-to-grayscale-in-android about Android. Is there any way to convert a Bitmap to grayscale I know how to draw a grayscale bitmap using canvas operations.. way to convert a Bitmap to grayscale I know how to draw a grayscale bitmap using canvas operations http www.mail archive.com android.. way to do it Thanks a lot android image processing bitmap grayscale share improve this question Isn't that exactly what the..
Understanding the Use of ColorMatrix and ColorMatrixColorFilter to Modify a Drawable's Hue http://stackoverflow.com/questions/4354939/understanding-the-use-of-colormatrix-and-colormatrixcolorfilter-to-modify-a-draw I'm working on a UI for an app and I'm attempting to use grayscale icons and allow the user to change the theme to a color of their..
http://stackoverflow.com/questions/4560265/android-edit-bitmap-channels channels back into an ARGB image. You just need the grayscale channel images and an image with the alpha channel you want.. the alpha channel you want note that this is not an opaque grayscale image but an image with the alpha you want. You then draw each.. onto a blank black filled Bitmap. have your 3 channel grayscales and 1 alpha bitmap loaded by this point Paint redPaint new..
Extract black and white image from android camera's NV21 format http://stackoverflow.com/questions/5272388/extract-black-and-white-image-from-android-cameras-nv21-format 16 g 8 r This image helps to understand. If you wanna just grayscale image is easer. You can discard all the U and V info and take.. be like this Converts YUV420 NV21 to Y888 RGB8888 . The grayscale image still holds 3 bytes on the pixel. @param pixels output.. @param pixels output array with the converted array o grayscale pixels @param data byte array on YUV420 NV21 format. @param..
Android: how to display camera preview with callback? http://stackoverflow.com/questions/8350230/android-how-to-display-camera-preview-with-callback I don't even need the colors I just need to preview grayscale image. Images from camera are in YUV format and you have to..
Android : Converting color image to grayscale [duplicate] http://stackoverflow.com/questions/8381514/android-converting-color-image-to-grayscale Converting color image to grayscale duplicate This question already has an answer here Convert.. I need your help I'm trying to convert color image into grayscale using the average of red green blue. But it comes out with errors.. bitmap bmOut.setPixel x y Color.argb A R G B android grayscale share improve this question Try the solution from this previous..
http://stackoverflow.com/questions/11699744/face-recognition-on-android image and label img cvLoadImage image.getAbsolutePath label Integer.parseInt image.getName .split 0 Convert image to grayscale grayImg IplImage.create img.width img.height IPL_DEPTH_8U 1 cvCvtColor img grayImg CV_BGR2GRAY Append it in the image list..
http://stackoverflow.com/questions/1793338/drawable-grayscale grayscale What would be the right way to turn a color Drawable into a grayscale one to indicate disabled state EDIT B W grayscale.. grayscale What would be the right way to turn a color Drawable into a grayscale one to indicate disabled state EDIT B W grayscale android drawable share improve this question Apparently you can use.. What would be the right way to turn a color Drawable into a grayscale one to indicate disabled state EDIT B W grayscale android drawable share improve this question Apparently you can use the ColorMatrix class to do any sort of color space..
Convert a Bitmap to GrayScale in Android http://stackoverflow.com/questions/3373860/convert-a-bitmap-to-grayscale-in-android in Android I am new to this site and I come with a question about Android. Is there any way to convert a Bitmap to grayscale I know how to draw a grayscale bitmap using canvas operations http www.mail archive.com android developers@googlegroups.com.. site and I come with a question about Android. Is there any way to convert a Bitmap to grayscale I know how to draw a grayscale bitmap using canvas operations http www.mail archive.com android developers@googlegroups.com msg38890.html but I really.. lot and still could not find. Anyone knows a easy efficient way to do it Thanks a lot android image processing bitmap grayscale share improve this question Isn't that exactly what the code you're linking to does It takes a color bitmap bmp creates..
Understanding the Use of ColorMatrix and ColorMatrixColorFilter to Modify a Drawable's Hue http://stackoverflow.com/questions/4354939/understanding-the-use-of-colormatrix-and-colormatrixcolorfilter-to-modify-a-draw and ColorMatrixColorFilter to Modify a Drawable's Hue I'm working on a UI for an app and I'm attempting to use grayscale icons and allow the user to change the theme to a color of their choosing. To do this I'm trying to just apply a ColorFilter..
http://stackoverflow.com/questions/4560265/android-edit-bitmap-channels this question It is quite possible to re combine separate channels back into an ARGB image. You just need the grayscale channel images and an image with the alpha channel you want note that this is not an opaque grayscale image but an image.. just need the grayscale channel images and an image with the alpha channel you want note that this is not an opaque grayscale image but an image with the alpha you want. You then draw each channel with a Paint using the appropriate PorterDuffXfermode.. channel with a Paint using the appropriate PorterDuffXfermode onto a blank black filled Bitmap. have your 3 channel grayscales and 1 alpha bitmap loaded by this point Paint redPaint new Paint redPaint.setXfermode new PorterDuffXfermode Mode.LIGHTEN..
Extract black and white image from android camera's NV21 format http://stackoverflow.com/questions/5272388/extract-black-and-white-image-from-android-cameras-nv21-format g g 255 255 g 0 0 g b b 255 255 b 0 0 b return 0xff000000 b 16 g 8 r This image helps to understand. If you wanna just grayscale image is easer. You can discard all the U and V info and take just the Y info. The code would can be like this Converts.. the U and V info and take just the Y info. The code would can be like this Converts YUV420 NV21 to Y888 RGB8888 . The grayscale image still holds 3 bytes on the pixel. @param pixels output array with the converted array o grayscale pixels @param data.. RGB8888 . The grayscale image still holds 3 bytes on the pixel. @param pixels output array with the converted array o grayscale pixels @param data byte array on YUV420 NV21 format. @param width pixels width @param height pixels height public static..
Android: how to display camera preview with callback? http://stackoverflow.com/questions/8350230/android-how-to-display-camera-preview-with-callback camera callback and I want to get at least 15fps on a real device. I don't even need the colors I just need to preview grayscale image. Images from camera are in YUV format and you have to process it somehow which is the main performance problem. I'm..
Android : Converting color image to grayscale [duplicate] http://stackoverflow.com/questions/8381514/android-converting-color-image-to-grayscale Converting color image to grayscale duplicate This question already has an answer here Convert a Bitmap to GrayScale in Android 4 answers Hi guys I.. a Bitmap to GrayScale in Android 4 answers Hi guys I need your help I'm trying to convert color image into grayscale using the average of red green blue. But it comes out with errors Here is my code imgWidth myBitmap.getWidth imgHeight myBitmap.getHeight.. B int 0.299 R 0.587 G 0.114 B set new pixel color to output bitmap bmOut.setPixel x y Color.argb A R G B android grayscale share improve this question Try the solution from this previous answer by leparlon public Bitmap toGrayscale Bitmap..
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