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processing:search_for_peaks [2019/02/20 22:51] smerkelprocessing:search_for_peaks [2026/08/10 10:55] (current) smerkel
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 Searching for diffraction spots in usually performed using [[software:peaksearch|peaksearch]]. Searching for diffraction spots in usually performed using [[software:peaksearch|peaksearch]].
  
-To do so, you should look at some random peaks from several images by zooming in (in [[software:fabian|Fabian]]) and check out their intensity. Try to estimate a threshold value above which you have a peak and no junk. The threshold should separates peaks from background (everything above the threshold value is a peak, everything below is background). +To do so, you should look at some random peaks from several images by zooming in (in the [[software:timeless_viewer|TIMEleSS Viewer]]) and check out their intensity. Try to estimate a threshold value above which you have a peak and no junk. The threshold should separates peaks from background (everything above the threshold value is a peak, everything below is background). 
  
 You can also define several threshold values and see the result. You can also define several threshold values and see the result.
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 ==== Evaluating results ==== ==== Evaluating results ====
  
-To check the outcome of the peak search, you can load the peaks which were found into [[software:fabian|Fabian]] and see if they match the actual peak positions. +To check the outcome of the peak search, you can load the peaks which were found into the [[software:timeless_viewer|TIMEleSS Viewer]] and see if they match the actual peak positions. 
  
-To do this, you have to go click on //CrystTools// --> //Peaks// --> //Read peaks// and choose the //.flt// file which PeakSearch just created. They should appear as red circles on the diffraction image. +To do this, you have to go click on //3D-XRD extra// --> //Read peaks from..// and choose the //.flt// file which PeakSearch just created. Then select //3D-XRD extra// --> //Show peaks// 
 +They should appear as red circles on the diffraction image. 
  
-You can switch on/off the diffraction spots by clicking on //CrystTools// --> //Peaks// --> //Show//.+You can switch on/off the diffraction spots by clicking on //3D-XRD extra// --> //Show peaks//.
  
-Below is an example of Fabian showing a diffraction image in Fabian after background processing and artifact removing as well as the same image with peaks overlay after a peak search.+Below is an example of Fabian showing a diffraction image in Fabian after background processing and artifact removing as well as the same image with peaks overlay after a peak search. We now use the [[software:timeless_viewer|TIMEleSS Viewer]] and it should look quite similar.
  
 [{{:processing:diff-1345-diamond-removed.jpg?300 |Diffraction image in Fabian after background processing and artifact removing)}}][{{ :processing:diff-1345-peaks.jpg?300|Same image showing peaks after peak search }}] [{{:processing:diff-1345-diamond-removed.jpg?300 |Diffraction image in Fabian after background processing and artifact removing)}}][{{ :processing:diff-1345-peaks.jpg?300|Same image showing peaks after peak search }}]
  
processing/search_for_peaks.1550699460.txt.gz · Last modified: by smerkel