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Image Fusion

When Fluke IR-fusion® was first launched, I wondered whether or not it would be perceived as just another marketing gimmick, and if not, how well it would be used. Time has proven that few find it gimmicky and most use it very well.

In the field I nearly always use the Full Infrared setting (left) for IR-Fusion® rather than the Picture-in-picture setting (right) which results in a smaller version of the thermal image. The blue area is where air is leaking into the kitchen exhaust fan ductwork.

Over the years, I’ve learned a couple tricks about IR-fusion® that I wanted to pass along. First, while in the field I nearly always use the Full Infrared setting. Remember, no matter how the image is set up I can change it later in Smartview, given that I’ve saved the images in an IS2 format, to whatever I want.

I see many people use the Picture-in-picture setting while in the field, but I don’t recommend it. Why? I want to use every bit of the screen to display the vital thermal information rather than just seeing a small portion of the center of the screen.

I also see many new thermographers using the Blended setting in the field. Again, I do not generally recommend this. Not only do we want a full infrared image, but we don’t want to make a mistake common to using the blended setting. Experienced thermographers know glass is opaque, but the blended setting has caused many new thermographers to assume they are seeing through a window.

Once I’ve imported the image file into Smartview, I switch the setting as appropriate. For reports, I’m a big fan of both the Picture-in-picture setting, as well as the Blended settings, because they so powerfully show the relationships between the visual and thermal worlds.

And don’t forget this important fact: when your IR image is in focus, the alignment of the thermal and visual images in IR-fusion® is perfect. No imager manufacturer other than Fluke can say that and it is worth a lot!

Take some time this week and explore how the various IR-fusion® setting work and which are best at showing the information you want. And please let us know what you think in the comments section so others can learn from your experiences!

Thinking Thermally,

John Snell—The Snell Group, a Fluke Thermal Imaging Blog content partner

2 comments to Image Fusion

  • Ben Duffey

    I am using the picture in picture and blended setting when sorting the images for reporting usually on insulation problems such as in boilers or heaters in chemical environments. Using picture in picture and blended settings when taking the images I find a bit difficult and as you say, I also want every bit of the screen to see the thermal image. I find using the blended setting very important for showing the areas of interest when looking for temperatures above a specified temperature. When we bought our imager this features was the deciding factor.

  • John Snell

    Right on! The blended is particularly useful as you are employing it. Congrats! Glad to hear it is working well for you. Any issues I can help you with?

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