Error in Image subtract

I have two images and I apply IMAQ subtract among these two. Image 1 is much brighter in intensity with respect to Image 2. But, I see a complete black image after the IMAQ subtraction. How can this happen.
Abhilash S Nair
Research Assistant @ Photonic Devices and Systems lab
[ LabView professional Development System - Version 11.0 - 32-bit ]
LabView Gear:
1. NI PXI-7951R & NI 5761
2. The Imaging Source USB 3.0 monochrome camera with trigger : DMK 23UM021
OPERATING SYSTEM - [ MS windows 7 Home Premium 64-bit SP-1 ]
CPU - [Intel Core i7-2600 CPU @ 3.40Ghz ]
MEMORY - [ 16.0 GB RAM ]
GPU - [ NVIDIA GeForce GT 530 ]
Solved!
Go to Solution.
Attachments:
Subtract_Images-DEV-2.vi ‏56 KB
Back=up.zip ‏544 KB

Image 2 subtracted from Image 1. No it is not zero. I removed the write IMAQ 2.vi and checked the images in the VI front panel. I can see the images. But when I write it to a file (bmp, jpeg, tiff or png) I see only black image.
Abhilash S Nair
Research Assistant @ Photonic Devices and Systems lab
[ LabView professional Development System - Version 11.0 - 32-bit ]
LabView Gear:
1. NI PXI-7951R & NI 5761
2. The Imaging Source USB 3.0 monochrome camera with trigger : DMK 23UM021
OPERATING SYSTEM - [ MS windows 7 Home Premium 64-bit SP-1 ]
CPU - [Intel Core i7-2600 CPU @ 3.40Ghz ]
MEMORY - [ 16.0 GB RAM ]
GPU - [ NVIDIA GeForce GT 530 ]
Attachments:
Subtract_Images-DEV-2.vi ‏53 KB
Back=up.zip ‏544 KB

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