I have HRTEM migrograph of .tif and .jpg format. Although i can open them through DM software, i am unable to use the 'FFT' and 'IFFT' button.
Even if they can be calibrated using ImageJ, i find DM more accurate. I have added image for reference.
Thank You.
The problem is not about the format you use. Actually FFT must be proformed with a gray-scale image. And a JPG or TIF file is usually saved in RGB mode. So if you want to use FFT in Gatan DM, you should convert you file from RGB mode to gray-scale.
You can transform the mode to grey-scale in Photoshop. Then you can use the 'FFT' and 'IFFT' button.
For .dm3 extension files( from TEM) you have to download free ImageJ (from https://imagej.nih.gov/ij/download.html ). Extract the arhive and open the app. Go to File>Open and select the folder and .dm3 file you want to open. For this type of files you don't need to add the scale manually, there is a automatic scale and info comes with the image. In case you want to add the scale you have to go Analize>Tool>Scale bar.. , an icon will show up and you have to insert the detail about your required scale, after that press OK and the scale will appear on your image. If you want to save the image in a different format go on File>Save as> and choose your format(.tiff, .jpg and so on).
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