I am a complete newbie so maybe the question is obvious: The thing is that I am making the program (JAVA, processing) that is to give me the amount of R, G, B in each selected pixel (each pixel in each ten row) on the picture. When I am printing the outputs over the console it works perfectly all data till the 250 pixel in last row are there (picture width is 251) but when I write it down to the file it cuts the data in 235 pixel - 15 remaining are not written down. Is it the question of buffer memory? How can I have all data written? Here is the code:
PrintWriter output;
void setup()
{
output = createWriter("positions.txt"); //writedown tool enter
size(251,201); // screen size setup
PImage img = loadImage("sharp.jpg"); // implementing image Sketch->Add File
image(img,0,0); // placeing the img on the screen
loadPixels(); // work on pixels
for(int s=0; s < pixels.length; s=s+9*width) // go through selected rows of pixels with intervals of 10 rows (0 to 0+9width)
{
for(int j=0; j < width; j++) // go through each pixel in selected row
{
float r=red(pixels[s+j]); // read the red value from each chceked pixel
float b=blue(pixels[s+j]); // read the blue value from each chceked pixel
float g=green(pixels[j+s]); // read the green value from each checked pixel
output.println(j + " , "+ s +" , "+ r + " , " + g + " , " + b); //write the data down to the file (selected data)
color black = color(0, 0, 0); // checking, set a black color
pixels[j+s]=black; // checking, change the color of current pixel
println(j + " , "+ s +" ; "+ r + " , " + g + " , " + b); // print the read data
}
}
updatePixels(); // set changes
}
void keyPressed()
{
output.flush(); // Writes the remaining data to the file
output.close(); // Finishes the file
exit(); // Stops the program
}
did you try writing output.flush(); just before updatePixels(); ?