I am trying to play the video in reverse decrementing the frame number in IMAQ Read Frame function. Its working but the result is very choppy as every frame takes significant time to load, but when I just increment the frame number and play the video forward, its executing without any problem. I have attached the VI and info regarding the video, could you guys please let me know why I am having problem when I am trying to display the video in the reverse order.
Playing AVI file.vi
I need one help regarding changing the image image type
How can I convert grey scale image to false color image?
Here, I have attached two images. 1. greyscale image 2. is just an example that I want to convert. (False Color).
Any help would be appreciate.
Understandably NI's own line of analog video frame grabbers have been obsolete for some time (since 2010 I believe).
I have an industrial application where I am bound to using legacy analog VGA cameras. Upgrading the cameras is not an option
I would like to use LabVIEW for testing purposes. Are there any good non-NI frame grabbers still out there that are easy to get up and running with LabVIEW?
Unfortunately due to the bureaucratic purchasing processes ordering an old NI card of e-bay is not really feasible.
By Karin Hellqvist
In the attached image I have four Code 128 and two Code 39. I have problem detecting them without down sampling the image first. Since I want to grade the bar codes I don't want to down sample since the code quality is reduced then. I noticed this from that sometimes some of the bar codes are found without down sampling an then the grade is higher for those. Down sampling a factor 2 sometimes work, down sampling a factor 4 always works.
I have tried croping the image around the bar code but this doesn't help.
I'm using IMAQ Read Barcode 2, and have tried to change the parameter Min Bar Width with no result. Is there any other parameter I can change for the algorithm to find the barcodes, without having to down sample my image.
Certified LabVIEW Architect
Hello to all.
First of all thanks a lot for reading this post and being able to help.
I have noticed the next problem:
My application has a camera, this camera takes images (snap mode) and application process them (detect some edges in the image). It works fine.
But when I make the Display bigger my application takes longer to process images (and for me that is crucial). I think that this happens because my application in this case has to process a bigger image (bigger display = bigger image??)
So maybe if My camera takes images with lower resolution I solve the problem.
So how can I change image resolution captured by my gigE camera? In NI MAX or in Labview?
Thanks a lot!