I don’t know if you have a problem with your camera or not and not be able to tell you unless I saw other pictures in different palettes. What I will tell you off the bat is that you are using a HIGH CONTRAST palette which is designed to accentuate temperature differences. High contrast palette is a modern derivative of the older medical palettes that came with older production imagers. Each manufacturer varies on how many colors they use in their gradients to develop a palette. Some are 16, 32, 150, 255 different colors to form a gradient. The less colors you have, the wider the temperature range is assigned to each color to form the image that you see. Obviously a 16 color palette will look a lot grainier than a palette that uses 256 colors to form the gradient. The problem with more colors though is that subtle temperature variations can go unnoticed because our eyes can’t distinguish between the different shades of color when there are that many present.
When you take an image with a wide temperature span, you are asking a palette with limited amounts of color to span temperature ranges that are pretty far apart. I suspect that if you use that palette for something that has a smaller temperature elevation over the surrounding sources, you will not see such a dramatic pixelization effect in the image.
I don’t know how many RGB colors that Fluke uses in their high contrast palette, but I know FLIR uses 150 for their baseline gradient, not including isotherms. I don’t have a copy of the Fluke software on my laptop to look at the files, but if you want me to look at the palette, you can send me the file that is probably buried deep in the program files.
Like I said, I can’t tell if it’s your camera or not, but I suspect it is not. I believe you are expecting too much out of the software in the imager and analysis software. Use the palette for images with closer temperature spans and lower delta T’s and see if you get the same results.
I’m in a huge hurry but this is about as dead on as it gets. Thanks Scott!
It’s a FLUKE thing and only a high resolution rainbow Palette FLUKE thing. The FLUKE and FLIR have different amounts of colors effecting the resolution of the rainbow high contrast palettes. My FLUKE images are crisp and perfect on all other palletes because the higher amount of colors aren’t needed.
I knew somebody had to know what was going on! Problem solved! question answered! Thanks again Scott!