Changing colors of an image in real time

Question

Hi,
I am trying to get an image raw data in an int[] array using getRGB() in order to change the color of the image.
But it is working fine in simulator for any image. if i install it in real device say Nokia 6600 the getRGB() method is not working for large .png image like size (88X57) because the device gets hang while we are using large image but it is working fine for small image.
Pls give me some idea how to use getRGB() for large image.
Following is the sample code
int imageWidth = img.getWidth(); 
int imageHeight = img.getHeight();
int[] raw = new int[imageWidth*imageHeight];
img.getRGB(raw, 0, imageWidth, 0, 0, imageWidth, imageHeight);Thanks in advance

Answer 1

Use the AI CONFIG to set up your acquisition.
Use AI CLOCK config to set up your timing.
Use AI TRIGGER CONFIG to set up your trigger.
Use AI CONTROL to start the DAQ (use TOTAL SCANS TO ACQUIRE = 0 for unlimited scanning.
repeat (While loop)
Use AI READ with a NUMBER of SCANS TO READ = 0. This tells you the backlog (how many scans in the buffer)
Use AI READ with NUMBER OF SCANS TO READ = to the backlog number from above. (this empties the buffer)
Process the scans received into your image - append to previous data and re-display.
If you are doing a fixed number of scans, add this backlog number to the total done so far, and see if you're done. If you're doing continuous, skip this step.
Wait 100 mSec if you can, 10 m
Sec if you can't.
Loop (until # scans done >= # scans wanted OR Quit button, whatever).
Use AI CONTROL to stop the DAQ.
The idea is that the DAQ operation happens in the background. You just ask how many are available, and then read that many and use them.
You wait 100 mSec to allow the display update to happen.
Steve Bird
Culverson Software - Elegant software that is a pleasure to use.
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