image control

[ABM26]

Hi, I need to input a image(JPEG) to my front panel. I would use image control nodes to control the brightness of the images. However, I can't input the image directly. Any inputs appreciated.

[muks]

Can you explain a bit more clearly of what you mean by "input the image directly". You can use an "imaq read vi" to read the image.

[ABM26]

Hi,

Basically, I need to insert a JPEG image on the front panel. I will use the data from the JPEG image and process it such that the new data is going to change the brightness of the new image file.

i found how to import a JPEG image. see below. Now I need to process the new picture data to modify the brightness and contrast. Any inputs?

Thanks. 

 

[muks]

You can vary the pixel valu like this. I will post a more precise way in the next one.

[Hueter]

This example shows how you can manipulate each color map independently. You can use this frame work to do more advanced image manipulation.

RGB CMY Color Editor for Jpeg

-Hunter

[LightWorker]

I've used Vision functions to modify a colour image. If you want to extract info from the image in order to set BCG for each colour then it is pretty straightforward with other vision tools. A mono image is obviously easier to work with.

Simon

[LightWorker]

Apologies - I attached an image rather than the vi. Here is the vi.

Simon

[muks]

I feel the op doesnot have vdm installed. using read jpeg instead of imaq read lead me to think so.

[LightWorker]

I suspect you're right. I just wanted to highlight the possibility of using vision commands as this tends to make life a bit easier.

[muks]

Yes lightWorker is right and using VDM will simplify the proceedings to a great extent