How to Get Pixel Color in Android

by

You can get the pixel from the view like this:

ImageView imageView = ((ImageView)v);
Bitmap bitmap = ((BitmapDrawable)imageView.getDrawable()).getBitmap();
int pixel = bitmap.getPixel(x,y);

Now you can get each channel with:

int redValue = Color.red(pixel);
int blueValue = Color.blue(pixel);
int greenValue = Color.green(pixel);

The Color functions return the value in each channel. So all you have to do is check if Red is 255 and green and blue are 0, than set the textView text to “it is red”. Just pay attention that saying that something is red is not simply that the red channel is the greater than zero. ‘Cos 255-Green and 255-Red is yellow, of course.
You can also just compare the pixel to different color.
for example:

if(pixel == Color.MAGENTA){
   textView.setText("It is Magenta");
}

Hope it helps.

More Related Contents:

  1. Converting pixels to dp
  2. How to get screen dimensions as pixels in Android
  3. Android background image size in pixel
  4. How to convert DP, PX, SP among each other, especially DP and SP?
  5. How to correctly save instance state of Fragments in back stack?
  6. How to change the status bar color in Android?
  7. How to adjust text font size to fit textview
  8. Fragments within Fragments
  9. How to get Resource Name from Resource id
  10. Android: Accessing assets folder sqlite database file with .sqlite extension
  11. Unresolved reference – activity does not recognize synthetic imports in android studio v4
  12. Disable / Check for Mock Location (prevent gps spoofing)
  13. ADB No Devices Found
  14. ExpandableListView – hide indicator for groups with no children
  15. gradle build fails on lint task
  16. Does Android support JDK 6 or 7 [duplicate]
  17. How do you setLayoutParams() for an ImageView?
  18. MenuItem tinting on AppCompat Toolbar
  19. How to show Snackbar at top of the screen
  20. android: using ActivityGroup to embed activities
  21. How to handle SYSTEM_ALERT_WINDOW permission not being auto-granted on some pre-Marshmallow devices
  22. Unable to load class AndroidComponentsExtension after upgrading the Android Gradle Plugin 7.1
  23. How to resolve the error “No resource found that matches the given name” when adding library v7 AppCompat in Eclipse?
  24. Is there a way to show a preview of a RecyclerView’s contents in the Android Studio editor?
  25. Circular reveal transition for new activity
  26. Android SQLite auto increment
  27. How to switch between fragments during onclick?
  28. Error:compileSdkVersion android-21 requires compiling with JDK 7
  29. How to pass a value from one Fragment to another in Android?
  30. How do you override a module/dependency in a unit test with Dagger 2.0?

Leave a Comment