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-2

I wanted to flip original image horizontally and create an image in the same folder, but it does not create a new image. Thanks in advance

import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

public class ImagesFlipHorizontally

public static void main(String[] args) throws IOException 

 File location1 = new File("E:\Users/Peter/Downloads/moon1.jpg");
 BufferedImage image = ImageIO.read(location1);

 File location2 = new File("E:\Users/Peter/Downloads/moon1mirror.jpg");
 int width = image.getWidth();
 int height = image.getHeight();
 BufferedImage mirror = mirrorimage (image, width, height);
 ImageIO.write(mirror, "jpg", location2);




 private static BufferedImage mirrorimage (BufferedImage img, int w, int h) 

 BufferedImage horizontallyflipped = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
 for (int xx = w-1; xx > 0; xx--) 
 for (int yy = 0; yy < h; yy++) 

 img.setRGB(w-xx, yy, img.getRGB(xx, yy));

 
 

 return horizontallyflipped;

 

java

share|improve this question

asked Mar 28 at 13:54

h20002000h20002000

1

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You're doing nothing at all to the horizontallyflipped object
  
  – Hovercraft Full Of Eels
  Mar 28 at 14:01
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Shouldn't img.setRGB(...) be instead horizontallyflipped.setRGB(...)?
  
  – Hovercraft Full Of Eels
  Mar 28 at 14:01
  

  
  
  
  

add a comment
 | 

-2

I wanted to flip original image horizontally and create an image in the same folder, but it does not create a new image. Thanks in advance

import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

public class ImagesFlipHorizontally

public static void main(String[] args) throws IOException 

 File location1 = new File("E:\Users/Peter/Downloads/moon1.jpg");
 BufferedImage image = ImageIO.read(location1);

 File location2 = new File("E:\Users/Peter/Downloads/moon1mirror.jpg");
 int width = image.getWidth();
 int height = image.getHeight();
 BufferedImage mirror = mirrorimage (image, width, height);
 ImageIO.write(mirror, "jpg", location2);




 private static BufferedImage mirrorimage (BufferedImage img, int w, int h) 

 BufferedImage horizontallyflipped = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
 for (int xx = w-1; xx > 0; xx--) 
 for (int yy = 0; yy < h; yy++) 

 img.setRGB(w-xx, yy, img.getRGB(xx, yy));

 
 

 return horizontallyflipped;

 

java

share|improve this question

asked Mar 28 at 13:54

h20002000h20002000

1

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You're doing nothing at all to the horizontallyflipped object
  
  – Hovercraft Full Of Eels
  Mar 28 at 14:01
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Shouldn't img.setRGB(...) be instead horizontallyflipped.setRGB(...)?
  
  – Hovercraft Full Of Eels
  Mar 28 at 14:01
  

  
  
  
  

add a comment
 | 

I wanted to flip original image horizontally and create an image in the same folder, but it does not create a new image. Thanks in advance

import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

public class ImagesFlipHorizontally

public static void main(String[] args) throws IOException 

 File location1 = new File("E:\Users/Peter/Downloads/moon1.jpg");
 BufferedImage image = ImageIO.read(location1);

 File location2 = new File("E:\Users/Peter/Downloads/moon1mirror.jpg");
 int width = image.getWidth();
 int height = image.getHeight();
 BufferedImage mirror = mirrorimage (image, width, height);
 ImageIO.write(mirror, "jpg", location2);




 private static BufferedImage mirrorimage (BufferedImage img, int w, int h) 

 BufferedImage horizontallyflipped = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
 for (int xx = w-1; xx > 0; xx--) 
 for (int yy = 0; yy < h; yy++) 

 img.setRGB(w-xx, yy, img.getRGB(xx, yy));

 
 

 return horizontallyflipped;

 

java

share|improve this question

asked Mar 28 at 13:54

h20002000h20002000

1

import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

public static void main(String[] args) throws IOException 

 File location1 = new File("E:\Users/Peter/Downloads/moon1.jpg");
 BufferedImage image = ImageIO.read(location1);

 File location2 = new File("E:\Users/Peter/Downloads/moon1mirror.jpg");
 int width = image.getWidth();
 int height = image.getHeight();
 BufferedImage mirror = mirrorimage (image, width, height);
 ImageIO.write(mirror, "jpg", location2);




 private static BufferedImage mirrorimage (BufferedImage img, int w, int h) 

 BufferedImage horizontallyflipped = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
 for (int xx = w-1; xx > 0; xx--) 
 for (int yy = 0; yy < h; yy++) 

 img.setRGB(w-xx, yy, img.getRGB(xx, yy));

 
 

 return horizontallyflipped;

 

share|improve this question

asked Mar 28 at 13:54

h20002000h20002000

1

share|improve this question

asked Mar 28 at 13:54

h20002000h20002000

1

asked Mar 28 at 13:54

h20002000h20002000

1

asked Mar 28 at 13:54

h20002000h20002000

1

1 Answer
1

active

oldest

votes

0

Besides doing xx >= 0 the swapping was not done.

private static BufferedImage mirrorimage (BufferedImage img, int w, int h) 
 BufferedImage horizontallyflipped = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
 for (int yy = 0; yy < h; yy++) 
 for (int xx = 0; xx < w/2; xx++) 
 int c = img.getRGB(xx, yy);
 img.setRGB(xx, yy, img.getRGB(w - 1 - xx, yy));
 img.setRGB(w - 1 - xx, yy, c);
 
 
 return horizontallyflipped;

There are faster means, like Flip Image with Graphics2D

share|improve this answer

edited Mar 28 at 14:29

answered Mar 28 at 14:20

Joop EggenJoop Eggen

82.8k77 gold badges6060 silver badges110110 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thank you Sir, I will check it out
  
  – h20002000
  Mar 28 at 14:30
  

  
  
  
  

add a comment
 | 

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0

Besides doing xx >= 0 the swapping was not done.

private static BufferedImage mirrorimage (BufferedImage img, int w, int h) 
 BufferedImage horizontallyflipped = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
 for (int yy = 0; yy < h; yy++) 
 for (int xx = 0; xx < w/2; xx++) 
 int c = img.getRGB(xx, yy);
 img.setRGB(xx, yy, img.getRGB(w - 1 - xx, yy));
 img.setRGB(w - 1 - xx, yy, c);
 
 
 return horizontallyflipped;

There are faster means, like Flip Image with Graphics2D

share|improve this answer

edited Mar 28 at 14:29

answered Mar 28 at 14:20

Joop EggenJoop Eggen

82.8k77 gold badges6060 silver badges110110 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thank you Sir, I will check it out
  
  – h20002000
  Mar 28 at 14:30
  

  
  
  
  

add a comment
 | 

0

Besides doing xx >= 0 the swapping was not done.

private static BufferedImage mirrorimage (BufferedImage img, int w, int h) 
 BufferedImage horizontallyflipped = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
 for (int yy = 0; yy < h; yy++) 
 for (int xx = 0; xx < w/2; xx++) 
 int c = img.getRGB(xx, yy);
 img.setRGB(xx, yy, img.getRGB(w - 1 - xx, yy));
 img.setRGB(w - 1 - xx, yy, c);
 
 
 return horizontallyflipped;

There are faster means, like Flip Image with Graphics2D

share|improve this answer

edited Mar 28 at 14:29

answered Mar 28 at 14:20

Joop EggenJoop Eggen

82.8k77 gold badges6060 silver badges110110 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thank you Sir, I will check it out
  
  – h20002000
  Mar 28 at 14:30
  

  
  
  
  

add a comment
 | 

Besides doing xx >= 0 the swapping was not done.

private static BufferedImage mirrorimage (BufferedImage img, int w, int h) 
 BufferedImage horizontallyflipped = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
 for (int yy = 0; yy < h; yy++) 
 for (int xx = 0; xx < w/2; xx++) 
 int c = img.getRGB(xx, yy);
 img.setRGB(xx, yy, img.getRGB(w - 1 - xx, yy));
 img.setRGB(w - 1 - xx, yy, c);
 
 
 return horizontallyflipped;

There are faster means, like Flip Image with Graphics2D

share|improve this answer

edited Mar 28 at 14:29

answered Mar 28 at 14:20

Joop EggenJoop Eggen

82.8k77 gold badges6060 silver badges110110 bronze badges

private static BufferedImage mirrorimage (BufferedImage img, int w, int h) 
 BufferedImage horizontallyflipped = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
 for (int yy = 0; yy < h; yy++) 
 for (int xx = 0; xx < w/2; xx++) 
 int c = img.getRGB(xx, yy);
 img.setRGB(xx, yy, img.getRGB(w - 1 - xx, yy));
 img.setRGB(w - 1 - xx, yy, c);
 
 
 return horizontallyflipped;

share|improve this answer

edited Mar 28 at 14:29

answered Mar 28 at 14:20

Joop EggenJoop Eggen

82.8k77 gold badges6060 silver badges110110 bronze badges

answered Mar 28 at 14:20

Joop EggenJoop Eggen

82.8k77 gold badges6060 silver badges110110 bronze badges

answered Mar 28 at 14:20

Joop EggenJoop Eggen

82.8k77 gold badges6060 silver badges110110 bronze badges