Create image from pixel array in java

Question

Here is my snippet. My original array is a[3][][] and the rgb values are stored in there I want to create a new image from them. The last line of the following code results in symbol not found.

BufferedImage img=newBufferedImage(bi.getWidth(),bi.getHeight(),BufferedImage.TYPE_INT_RGB);
for(int r=0; r<bi.getHeight(); r++)
    for(int c=0; c<bi.getWidth(); c++)
    {
        int red=a[0][r][c];
        int green=a[1][r][c];
        int blue=a[2][r][c];
        int rgb = (red << 16) | (green << 8) | blue;
        img.setRGB(c, r, rgb);
    }
ImageIO.write(img,"jpg", "abc.jpg");

Any suggestions?

I suggest that you use {} on all for loops. It will minimize the risk of bugs. — maba
– maba, Commented Sep 25, 2012 at 14:01

Windle · Accepted Answer · 2012-09-25 14:05:21Z

1

You are passing the wrong arguments to ImageIO.write(). From the docs, here are the 3 possibilities:

write(RenderedImage im, String formatName, File output) 
write(RenderedImage im, String formatName, ImageOutputStream output) 
write(RenderedImage im, String formatName, OutputStream output)

If you want to write the image to a file called abc.jpg, maybe try:

ImageIO.write(img, "jpg", new File("abc.jpg");

answered Sep 25, 2012 at 14:05

Windle

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2 Comments

Windle Over a year ago

On a side note, I agree with Maba, throw {} on every loop =)

Radu Murzea Over a year ago

Seconded :) . I can't even write loops without {} anymore :D .

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