ColorMatrix.setConcat() to combine ColorMatrixes

ColorMatrix.setConcat() to combine ColorMatrixes - Hello Friend GENERAL INFO FOR ANDROID DEVELOPMENT, In the article you read this time with the title ColorMatrix.setConcat() to combine ColorMatrixes, We have prepared this article for you to read and retrieve information there in. Hopefully the contents of postings Artikel Android code sample: bitmap and image, We write this you can understand. Alright, good read.

The Title : ColorMatrix.setConcat() to combine ColorMatrixes
link : ColorMatrix.setConcat() to combine ColorMatrixes

Read also


ColorMatrix.setConcat() to combine ColorMatrixes

The exercise "Set the rotation on a color axis of Bitmap with ColorMatrix" create rotated ColorMatrix for one color only, not all. We can create ColorMatrix from more than one by calling ColorMatrix.setConcat().

ColorMatrix.setConcat() to combine ColorMatrixs


package com.example.androiddrawbitmap;

import java.io.FileNotFoundException;

import android.net.Uri;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.ColorMatrix;
import android.graphics.ColorMatrixColorFilter;
import android.graphics.Paint;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;
import android.widget.TextView;

public class MainActivity extends Activity {

Button btnLoadImage;
ImageView imageResult;
SeekBar rotBarRed, rotBarGreen, rotBarBlue;
TextView rotText;

final int RQS_IMAGE1 = 1;

Uri source;
Bitmap bitmapMaster;
Canvas canvasMaster;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

btnLoadImage = (Button) findViewById(R.id.loadimage);
imageResult = (ImageView) findViewById(R.id.result);

btnLoadImage.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View arg0) {
Intent intent = new Intent(
Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(intent, RQS_IMAGE1);
}
});

rotText = (TextView) findViewById(R.id.textRot);
rotBarRed = (SeekBar) findViewById(R.id.rotbarred);
rotBarGreen = (SeekBar) findViewById(R.id.rotbargreen);
rotBarBlue = (SeekBar) findViewById(R.id.rotbarblue);
rotBarRed.setOnSeekBarChangeListener(seekBarChangeListener);
rotBarGreen.setOnSeekBarChangeListener(seekBarChangeListener);
rotBarBlue.setOnSeekBarChangeListener(seekBarChangeListener);

}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);

if (resultCode == RESULT_OK) {
switch (requestCode) {
case RQS_IMAGE1:
source = data.getData();

try {
bitmapMaster = BitmapFactory
.decodeStream(getContentResolver().openInputStream(
source));

rotBarRed.setProgress(0);
rotBarGreen.setProgress(0);
rotBarBlue.setProgress(0);

loadBitmapRotate();

} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

break;
}
}
}

OnSeekBarChangeListener seekBarChangeListener = new OnSeekBarChangeListener() {

@Override
public void onProgressChanged(SeekBar seekBar, int progress,
boolean fromUser) {
// TODO Auto-generated method stub

}

@Override
public void onStartTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub

}

@Override
public void onStopTrackingTouch(SeekBar seekBar) {
loadBitmapRotate();
}
};

private void loadBitmapRotate() {
if (bitmapMaster != null) {

float rotRed = (float) rotBarRed.getProgress();
float rotGreen = (float) rotBarGreen.getProgress();
float rotBlue = (float) rotBarBlue.getProgress();

rotText.setText("setRotate: " + String.valueOf(rotRed) + ", "
+ String.valueOf(rotGreen) + ", " + String.valueOf(rotBlue));

Bitmap bitmapColorScaled = updateRot(bitmapMaster, rotRed,
rotGreen, rotBlue);

imageResult.setImageBitmap(bitmapColorScaled);
}
}

private Bitmap updateRot(Bitmap src, float degreesRed, float degreesGreen,
float degreesBlue) {

int w = src.getWidth();
int h = src.getHeight();

Bitmap bitmapResult = Bitmap
.createBitmap(w, h, Bitmap.Config.ARGB_8888);
Canvas canvasResult = new Canvas(bitmapResult);
Paint paint = new Paint();

ColorMatrix colorMatrixRed = new ColorMatrix();
colorMatrixRed.setRotate(0, degreesRed);
ColorMatrix colorMatrixGreen = new ColorMatrix();
colorMatrixGreen.setRotate(1, degreesGreen);
ColorMatrix colorMatrixBlue = new ColorMatrix();
colorMatrixBlue.setRotate(2, degreesBlue);
ColorMatrix colorMatrixConcat = new ColorMatrix();
colorMatrixConcat.setConcat(colorMatrixRed, colorMatrixGreen);
colorMatrixConcat.setConcat(colorMatrixConcat, colorMatrixBlue);

ColorMatrixColorFilter filter = new ColorMatrixColorFilter(
colorMatrixConcat);
paint.setColorFilter(filter);
canvasResult.drawBitmap(src, 0, 0, paint);

return bitmapResult;
}
}


<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >

<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:autoLink="web"
android:text="http://android-er.blogspot.com/"
android:textStyle="bold" />

<Button
android:id="@+id/loadimage"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Load Image 1" />

<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent" >

<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical" >

<ImageView
android:id="@+id/result"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:background="@android:color/background_dark"
android:scaleType="centerInside" />

<TextView
android:id="@+id/textRot"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="ColorMatrix Rotate" />

<SeekBar
android:id="@+id/rotbarred"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:max="360"
android:progress="0" />
<SeekBar
android:id="@+id/rotbargreen"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:max="360"
android:progress="0" />
<SeekBar
android:id="@+id/rotbarblue"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:max="360"
android:progress="0" />
</LinearLayout>
</ScrollView>

</LinearLayout>


download filesDownload the files.

download filesDownload and try the APK.



more: Something about processing images in Android



Thus Article ColorMatrix.setConcat() to combine ColorMatrixes

The End Article ColorMatrix.setConcat() to combine ColorMatrixes This time, hopefully can give benefits to all of you. well, see you in posting other articles.

You are now reading the article ColorMatrix.setConcat() to combine ColorMatrixes with the link address http://xorislogo.blogspot.com/2013/09/colormatrixsetconcat-to-combine.html

0 Response to "ColorMatrix.setConcat() to combine ColorMatrixes"

Post a Comment