Cropping a Stream of Bitmap at a certain coordinates everytime that are coming from the LRU cache?
0
I need help in cropping a Stream of a bitmap that is being fetched through LRU cache, my job is to Crop the Images at certain coordinates that should be defined once and then all the images should be cropped at that very coordinates.
Currently, we have used the DragReactangle in android but its not cropping accurately.
Heres are my three methods:
private static Bitmap ScaleDownBitmap(Bitmap originalImage, Boolean filter) {
float ratio = Math.min((float) mWidth_ImageView / originalImage.getWidth(),
(float) mWidth_ImageView / originalImage.getHeight());
int width = Math.round(ratio * (float) originalImage.getWidth());
int height = Math.round(ratio * (float) originalImage.getHeight());
return Bitmap.createScaledBitmap(originalImage, width, height, filter);
}
public static void initCroppingParametersFromPrefs() {
sKeyRectX = Prefs.getInt(
CommonDataApplication.getInstance().getApplicationContext().getString(R.string.key_x),
0);
sKeyRectY = Prefs.getInt(
CommonDataApplication.getInstance().getApplicationContext().getString(R.string.key_y),
0);
sKeyRectWidth = Prefs.getInt(
CommonDataApplication.getInstance().getApplicationContext().getString(R.string.Key_width),
0);
sKeyRectHeight = Prefs.getInt(
CommonDataApplication.getInstance().getApplicationContext().getString(R.string.key_height),
0);
}
public static Bitmap getCroppedCameraStreamBitmap(Bitmap mBitmap) {
if ((sKeyRectX <= 0 && sKeyRectY <= 0 && sKeyRectWidth <= 0 && sKeyRectHeight <= 0)) {
//If items are not initialized then we return the original bitmap
return mBitmap;
}
float ratio = (float) Math.min((float) mWidth_ImageView / mBitmap.getWidth(),
(float) mWidth_ImageView / mBitmap.getHeight());
/**
* Do sanity checks i.e. y+height should be less than bitmap and x+width less than width of bitmap
*/
int width = (int) (sKeyRectWidth / ratio);
int height = (int) (sKeyRectHeight / ratio);
int start_x_pixel = (int) (sKeyRectX / ratio);
int start_y_pixel = (int) (sKeyRectY / ratio);
start_x_pixel = start_x_pixel <= mBitmap.getWidth() ? start_x_pixel : mBitmap.getWidth();
start_y_pixel = start_y_pixel <= mBitmap.getHeight() ? start_y_pixel : mBitmap.getHeight();
if (width + start_x_pixel > mBitmap.getWidth()) {
width = mBitmap.getWidth() - start_x_pixel;
}
if (height + start_y_pixel > mBitmap.getHeight()) {
height = mBitmap.getHeight() - start_y_pixel;
}
return Bitmap
.createBitmap(mBitmap, start_x_pixel, start_y_pixel,
width,
height
);
}
in The Main Activity i am doing like this
mDragRectView = findViewById(R.id.dragRect);
final LRUCache lruCache = CommonDataApplication.getInstance().getStateManager()
.getmLRUCacheForCamera();
//final int key = lruCache.getLatestFrameKey();
if (lruCache == null) {
return;
}
//See if we can get the bitmap and then we start to process it.
try {
final Bitmap latest_bitmap = lruCache.grabLatestFrameFromCache().getOriginalBitmap();
if (latest_bitmap != null) {
mDragRectView.setImageBitmap(ScaleDownBitmap(latest_bitmap, true));
}
mDragRectView.setOnUpCallback(new DragRectangleView.OnUpCallback() {
@Override
public void onRectFinished(final Rect rect) {
//points which is Required for Cropping Rectangle
Log.d("Rect need for bitmap",
rect.left + " " + rect.top + " " + (rect.right - rect.left) + " " + (rect.bottom
- rect.top) + " ");
Prefs.setInt(
CommonDataApplication.getInstance().getApplicationContext().getString(R.string.key_x),
rect.left);
Prefs.setInt(
CommonDataApplication.getInstance().getApplicationContext().getString(R.string.key_y),
rect.top);
Prefs.setInt(CommonDataApplication.getInstance().getApplicationContext()
.getString(R.string.Key_width), rect.right - rect.left);
Prefs.setInt(CommonDataApplication.getInstance().getApplicationContext()
.getString(R.string.key_height), rect.bottom
- rect.top);
}
});
} catch (NullPointerException e) {
}
Please, can anyone help me with this code what I am doing wrong here? Or a better solution?
android crop edited Nov 13 '18 at 10:53
André Sousa
1,1581818
asked Nov 13 '18 at 10:48
vivek panchalvivek panchal
62
add a comment |
0
I need help in cropping a Stream of a bitmap that is being fetched through LRU cache, my job is to Crop the Images at certain coordinates that should be defined once and then all the images should be cropped at that very coordinates.
Currently, we have used the DragReactangle in android but its not cropping accurately.
Heres are my three methods:
private static Bitmap ScaleDownBitmap(Bitmap originalImage, Boolean filter) {
float ratio = Math.min((float) mWidth_ImageView / originalImage.getWidth(),
(float) mWidth_ImageView / originalImage.getHeight());
int width = Math.round(ratio * (float) originalImage.getWidth());
int height = Math.round(ratio * (float) originalImage.getHeight());
return Bitmap.createScaledBitmap(originalImage, width, height, filter);
}
public static void initCroppingParametersFromPrefs() {
sKeyRectX = Prefs.getInt(
CommonDataApplication.getInstance().getApplicationContext().getString(R.string.key_x),
0);
sKeyRectY = Prefs.getInt(
CommonDataApplication.getInstance().getApplicationContext().getString(R.string.key_y),
0);
sKeyRectWidth = Prefs.getInt(
CommonDataApplication.getInstance().getApplicationContext().getString(R.string.Key_width),
0);
sKeyRectHeight = Prefs.getInt(
CommonDataApplication.getInstance().getApplicationContext().getString(R.string.key_height),
0);
}
public static Bitmap getCroppedCameraStreamBitmap(Bitmap mBitmap) {
if ((sKeyRectX <= 0 && sKeyRectY <= 0 && sKeyRectWidth <= 0 && sKeyRectHeight <= 0)) {
//If items are not initialized then we return the original bitmap
return mBitmap;
}
float ratio = (float) Math.min((float) mWidth_ImageView / mBitmap.getWidth(),
(float) mWidth_ImageView / mBitmap.getHeight());
/**
* Do sanity checks i.e. y+height should be less than bitmap and x+width less than width of bitmap
*/
int width = (int) (sKeyRectWidth / ratio);
int height = (int) (sKeyRectHeight / ratio);
int start_x_pixel = (int) (sKeyRectX / ratio);
int start_y_pixel = (int) (sKeyRectY / ratio);
start_x_pixel = start_x_pixel <= mBitmap.getWidth() ? start_x_pixel : mBitmap.getWidth();
start_y_pixel = start_y_pixel <= mBitmap.getHeight() ? start_y_pixel : mBitmap.getHeight();
if (width + start_x_pixel > mBitmap.getWidth()) {
width = mBitmap.getWidth() - start_x_pixel;
}
if (height + start_y_pixel > mBitmap.getHeight()) {
height = mBitmap.getHeight() - start_y_pixel;
}
return Bitmap
.createBitmap(mBitmap, start_x_pixel, start_y_pixel,
width,
height
);
}
in The Main Activity i am doing like this
mDragRectView = findViewById(R.id.dragRect);
final LRUCache lruCache = CommonDataApplication.getInstance().getStateManager()
.getmLRUCacheForCamera();
//final int key = lruCache.getLatestFrameKey();
if (lruCache == null) {
return;
}
//See if we can get the bitmap and then we start to process it.
try {
final Bitmap latest_bitmap = lruCache.grabLatestFrameFromCache().getOriginalBitmap();
if (latest_bitmap != null) {
mDragRectView.setImageBitmap(ScaleDownBitmap(latest_bitmap, true));
}
mDragRectView.setOnUpCallback(new DragRectangleView.OnUpCallback() {
@Override
public void onRectFinished(final Rect rect) {
//points which is Required for Cropping Rectangle
Log.d("Rect need for bitmap",
rect.left + " " + rect.top + " " + (rect.right - rect.left) + " " + (rect.bottom
- rect.top) + " ");
Prefs.setInt(
CommonDataApplication.getInstance().getApplicationContext().getString(R.string.key_x),
rect.left);
Prefs.setInt(
CommonDataApplication.getInstance().getApplicationContext().getString(R.string.key_y),
rect.top);
Prefs.setInt(CommonDataApplication.getInstance().getApplicationContext()
.getString(R.string.Key_width), rect.right - rect.left);
Prefs.setInt(CommonDataApplication.getInstance().getApplicationContext()
.getString(R.string.key_height), rect.bottom
- rect.top);
}
});
} catch (NullPointerException e) {
}
Please, can anyone help me with this code what I am doing wrong here? Or a better solution?
android crop edited Nov 13 '18 at 10:53
André Sousa
1,1581818
asked Nov 13 '18 at 10:48
vivek panchalvivek panchal
62
I know its too long question but can anyone help me with this?
– vivek panchal
Nov 14 '18 at 7:25
add a comment |
0
0
0
I need help in cropping a Stream of a bitmap that is being fetched through LRU cache, my job is to Crop the Images at certain coordinates that should be defined once and then all the images should be cropped at that very coordinates.
Currently, we have used the DragReactangle in android but its not cropping accurately.
Heres are my three methods:
private static Bitmap ScaleDownBitmap(Bitmap originalImage, Boolean filter) {
float ratio = Math.min((float) mWidth_ImageView / originalImage.getWidth(),
(float) mWidth_ImageView / originalImage.getHeight());
int width = Math.round(ratio * (float) originalImage.getWidth());
int height = Math.round(ratio * (float) originalImage.getHeight());
return Bitmap.createScaledBitmap(originalImage, width, height, filter);
}
public static void initCroppingParametersFromPrefs() {
sKeyRectX = Prefs.getInt(
CommonDataApplication.getInstance().getApplicationContext().getString(R.string.key_x),
0);
sKeyRectY = Prefs.getInt(
CommonDataApplication.getInstance().getApplicationContext().getString(R.string.key_y),
0);
sKeyRectWidth = Prefs.getInt(
CommonDataApplication.getInstance().getApplicationContext().getString(R.string.Key_width),
0);
sKeyRectHeight = Prefs.getInt(
CommonDataApplication.getInstance().getApplicationContext().getString(R.string.key_height),
0);
}
public static Bitmap getCroppedCameraStreamBitmap(Bitmap mBitmap) {
if ((sKeyRectX <= 0 && sKeyRectY <= 0 && sKeyRectWidth <= 0 && sKeyRectHeight <= 0)) {
//If items are not initialized then we return the original bitmap
return mBitmap;
}
float ratio = (float) Math.min((float) mWidth_ImageView / mBitmap.getWidth(),
(float) mWidth_ImageView / mBitmap.getHeight());
/**
* Do sanity checks i.e. y+height should be less than bitmap and x+width less than width of bitmap
*/
int width = (int) (sKeyRectWidth / ratio);
int height = (int) (sKeyRectHeight / ratio);
int start_x_pixel = (int) (sKeyRectX / ratio);
int start_y_pixel = (int) (sKeyRectY / ratio);
start_x_pixel = start_x_pixel <= mBitmap.getWidth() ? start_x_pixel : mBitmap.getWidth();
start_y_pixel = start_y_pixel <= mBitmap.getHeight() ? start_y_pixel : mBitmap.getHeight();
if (width + start_x_pixel > mBitmap.getWidth()) {
width = mBitmap.getWidth() - start_x_pixel;
}
if (height + start_y_pixel > mBitmap.getHeight()) {
height = mBitmap.getHeight() - start_y_pixel;
}
return Bitmap
.createBitmap(mBitmap, start_x_pixel, start_y_pixel,
width,
height
);
}
in The Main Activity i am doing like this
mDragRectView = findViewById(R.id.dragRect);
final LRUCache lruCache = CommonDataApplication.getInstance().getStateManager()
.getmLRUCacheForCamera();
//final int key = lruCache.getLatestFrameKey();
if (lruCache == null) {
return;
}
//See if we can get the bitmap and then we start to process it.
try {
final Bitmap latest_bitmap = lruCache.grabLatestFrameFromCache().getOriginalBitmap();
if (latest_bitmap != null) {
mDragRectView.setImageBitmap(ScaleDownBitmap(latest_bitmap, true));
}
mDragRectView.setOnUpCallback(new DragRectangleView.OnUpCallback() {
@Override
public void onRectFinished(final Rect rect) {
//points which is Required for Cropping Rectangle
Log.d("Rect need for bitmap",
rect.left + " " + rect.top + " " + (rect.right - rect.left) + " " + (rect.bottom
- rect.top) + " ");
Prefs.setInt(
CommonDataApplication.getInstance().getApplicationContext().getString(R.string.key_x),
rect.left);
Prefs.setInt(
CommonDataApplication.getInstance().getApplicationContext().getString(R.string.key_y),
rect.top);
Prefs.setInt(CommonDataApplication.getInstance().getApplicationContext()
.getString(R.string.Key_width), rect.right - rect.left);
Prefs.setInt(CommonDataApplication.getInstance().getApplicationContext()
.getString(R.string.key_height), rect.bottom
- rect.top);
}
});
} catch (NullPointerException e) {
}
Please, can anyone help me with this code what I am doing wrong here? Or a better solution?
android crop edited Nov 13 '18 at 10:53
André Sousa
1,1581818
asked Nov 13 '18 at 10:48
vivek panchalvivek panchal
62
I need help in cropping a Stream of a bitmap that is being fetched through LRU cache, my job is to Crop the Images at certain coordinates that should be defined once and then all the images should be cropped at that very coordinates.
Currently, we have used the DragReactangle in android but its not cropping accurately.
Heres are my three methods:
private static Bitmap ScaleDownBitmap(Bitmap originalImage, Boolean filter) {
float ratio = Math.min((float) mWidth_ImageView / originalImage.getWidth(),
(float) mWidth_ImageView / originalImage.getHeight());
int width = Math.round(ratio * (float) originalImage.getWidth());
int height = Math.round(ratio * (float) originalImage.getHeight());
return Bitmap.createScaledBitmap(originalImage, width, height, filter);
}
public static void initCroppingParametersFromPrefs() {
sKeyRectX = Prefs.getInt(
CommonDataApplication.getInstance().getApplicationContext().getString(R.string.key_x),
0);
sKeyRectY = Prefs.getInt(
CommonDataApplication.getInstance().getApplicationContext().getString(R.string.key_y),
0);
sKeyRectWidth = Prefs.getInt(
CommonDataApplication.getInstance().getApplicationContext().getString(R.string.Key_width),
0);
sKeyRectHeight = Prefs.getInt(
CommonDataApplication.getInstance().getApplicationContext().getString(R.string.key_height),
0);
}
public static Bitmap getCroppedCameraStreamBitmap(Bitmap mBitmap) {
if ((sKeyRectX <= 0 && sKeyRectY <= 0 && sKeyRectWidth <= 0 && sKeyRectHeight <= 0)) {
//If items are not initialized then we return the original bitmap
return mBitmap;
}
float ratio = (float) Math.min((float) mWidth_ImageView / mBitmap.getWidth(),
(float) mWidth_ImageView / mBitmap.getHeight());
/**
* Do sanity checks i.e. y+height should be less than bitmap and x+width less than width of bitmap
*/
int width = (int) (sKeyRectWidth / ratio);
int height = (int) (sKeyRectHeight / ratio);
int start_x_pixel = (int) (sKeyRectX / ratio);
int start_y_pixel = (int) (sKeyRectY / ratio);
start_x_pixel = start_x_pixel <= mBitmap.getWidth() ? start_x_pixel : mBitmap.getWidth();
start_y_pixel = start_y_pixel <= mBitmap.getHeight() ? start_y_pixel : mBitmap.getHeight();
if (width + start_x_pixel > mBitmap.getWidth()) {
width = mBitmap.getWidth() - start_x_pixel;
}
if (height + start_y_pixel > mBitmap.getHeight()) {
height = mBitmap.getHeight() - start_y_pixel;
}
return Bitmap
.createBitmap(mBitmap, start_x_pixel, start_y_pixel,
width,
height
);
}
in The Main Activity i am doing like this
mDragRectView = findViewById(R.id.dragRect);
final LRUCache lruCache = CommonDataApplication.getInstance().getStateManager()
.getmLRUCacheForCamera();
//final int key = lruCache.getLatestFrameKey();
if (lruCache == null) {
return;
}
//See if we can get the bitmap and then we start to process it.
try {
final Bitmap latest_bitmap = lruCache.grabLatestFrameFromCache().getOriginalBitmap();
if (latest_bitmap != null) {
mDragRectView.setImageBitmap(ScaleDownBitmap(latest_bitmap, true));
}
mDragRectView.setOnUpCallback(new DragRectangleView.OnUpCallback() {
@Override
public void onRectFinished(final Rect rect) {
//points which is Required for Cropping Rectangle
Log.d("Rect need for bitmap",
rect.left + " " + rect.top + " " + (rect.right - rect.left) + " " + (rect.bottom
- rect.top) + " ");
Prefs.setInt(
CommonDataApplication.getInstance().getApplicationContext().getString(R.string.key_x),
rect.left);
Prefs.setInt(
CommonDataApplication.getInstance().getApplicationContext().getString(R.string.key_y),
rect.top);
Prefs.setInt(CommonDataApplication.getInstance().getApplicationContext()
.getString(R.string.Key_width), rect.right - rect.left);
Prefs.setInt(CommonDataApplication.getInstance().getApplicationContext()
.getString(R.string.key_height), rect.bottom
- rect.top);
}
});
} catch (NullPointerException e) {
}
Please, can anyone help me with this code what I am doing wrong here? Or a better solution?
android crop android crop edited Nov 13 '18 at 10:53
André Sousa
1,1581818
asked Nov 13 '18 at 10:48
vivek panchalvivek panchal
62
edited Nov 13 '18 at 10:53
André Sousa
1,1581818
asked Nov 13 '18 at 10:48
vivek panchalvivek panchal
62
edited Nov 13 '18 at 10:53
André Sousa
1,1581818
edited Nov 13 '18 at 10:53
André Sousa
1,1581818
edited Nov 13 '18 at 10:53
André Sousa
1,1581818
1,1581818
asked Nov 13 '18 at 10:48
vivek panchalvivek panchal
62
asked Nov 13 '18 at 10:48
vivek panchalvivek panchal
62
asked Nov 13 '18 at 10:48
vivek panchalvivek panchal
62
62
I know its too long question but can anyone help me with this?
– vivek panchal
Nov 14 '18 at 7:25
add a comment |
I know its too long question but can anyone help me with this?
– vivek panchal
Nov 14 '18 at 7:25
I know its too long question but can anyone help me with this?
– vivek panchal
Nov 14 '18 at 7:25
I know its too long question but can anyone help me with this?
– vivek panchal
Nov 14 '18 at 7:25
add a comment |
0
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I know its too long question but can anyone help me with this?
– vivek panchal
Nov 14 '18 at 7:25