BufferedImage类型的方法getRGB（int，int）不适用于参数（..）

Question

I have a TIFF image with some "out of order" detectors (with null columns of pixels), and a previous created Array with index of column and nb of pixel null . I am trying to build a code that, scanning image, correct it applying a simple interpolation:

image.setRGB = ((row + numOfDetectors) + (row - 1)/ 2);

of neighboring pixels when find null pixel (reading the informations in Array list).

But I'm having a bit of problems with the image.setRGB method.

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

public class ArrayInterpolatorNew {


    // public static void main(String[] args) {
    private static void getPixelData(BufferedImage tif) {
        try { 

            String currentDir = new File(".").getAbsolutePath();
            System.out.println ("Current directory: " + currentDir);

            //read image file
            File file1 = new File("E:\\ByPass_PAN_C.tif");
            BufferedImage image1 = ImageIO.read(file1);

            // Firstly get a pixel
            int pixelValue = image1.getRGB(tif.getWidth(), tif.getHeight());

            // Developer may get all the pixels
            int width  = tif.getWidth(null);
            int height = tif.getHeight(null);
            int[] result = new int[height*width];
            int offset;


            image1.getRGB(0, 0, width, height, result, 0);

            //write file
            File file = new File("Resources/ByPass_PAN_C_interpol.tif"); // The file to save to.
            String format = "TIF"; // Example: "PNG" or "JPG"
            BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);


            final byte[] pixels = ((DataBufferByte) image.getRaster().getDataBuffer()).getData();
            final int firstRow = 1;
            final int numOfDetectors = 1;
            int row = tif.getWidth();
            int col = tif.getHeight();
            //int[][] pixels = new int[w][h];

            for (int j = 0; j < row; j++) 

                for (int i = 0; i < col; i++) 
                    //result[] = image.getRGB(row, col);

                    for(int J = 0; J < firstRow; J++) 
                    {   
                        if (row != J){
                            // set a pixel
                            image.setRGB(row, col, pixelValue);
                            //pixels[row] = [row][col];

                        if (row == J){
                            System.out.println("x,y: " + row + ", " + col + "num of Detectors: " + numOfDetectors);
                            //image.setRGB = ((row + numOfDetectors) + (row - 1)/ 2);
                            //tif.setRGB(pixelNoInterpol | pixelInterpol);

                        if (row == J && numOfDetectors > 20){
                            System.out.println("x,y: " + row + ", " + col + "num of Detectors: " + numOfDetectors + "then > 20");
                            image.setRGB(row, col, pixelValue);
                            }
                        }
                    }
                    try {
                        ImageIO.write(image, format, file);
                    } catch (IOException e) {
                        e.printStackTrace();
                    } finally { System.out.println("Images were written succesfully.");}  
                    System.out.println("rest of the code...");
                    }
            }  finally {
                }     
            }
}

Answer 1

Your method signature is wrong. It's either

getRGB(int startX, int startY, int w, int h, int[] rgbArray, int offset, int scansize)

Returns an array of integer pixels in the default RGB color model (TYPE_INT_ARGB) and default sRGB color space, from a portion of the image data.

or

getRGB (int, int)

You are using the incorrect argument list for getRGB:

image1.getRGB(0, 0, width, height, result, 0);

try

 image1.getRGB(0, 0, width, height, result, 0, scansize);

Answer 2

try this

you are getting pixelValue of last cell. so get every cell pixel

  int x1 = image1.getWidth();
  int y1 = image1.getHeight();
        BufferedImage dummy = new BufferedImage(x1, y1, 13);//BufferedImage.TYPE_INT_ARGB);

        for ( int rows = 0; rows < x1; rows++ ) {
             for ( int columns = 0; columns < y1; columns++ ){


                 int firstImg_Pixel = image1.getRGB( rows, columns );

                   //  dummy.setRGB(rows, columns, Color.red.getRed());
                 }
         }      

        // ImageIO.write(dummy, "jpeg", new File("D:\\Screenshots\\A-Image\\uuu.jpg"));

Answer 3

The problem is here:

image1.getRGB(0, 0, width, height, result, 0);

You are missing the last parameter, scansize . You can use the width as the scansize , so it would be:

image1.getRGB(0, 0, width, height, result, 0, width);