Difference: 20161014_MSciSpectroscopyMeeting (1 vs. 6)

Revision 614 Oct 2016 - WilliamBurrows

Line: 1 to 1
 
META TOPICPARENT name="StewartBoogertSpectroscopy2016"
Hot pixel removal
Line: 42 to 42
 
  • Plot for clad for grating of 10mm:
    Cad_plot_10.00.png
Added:
>
>
 
META FILEATTACHMENT attachment="Cd_1.50_median_filter_size4.png" attr="" comment="Median filter test on the Cd spectrum image at 1.50mm with size=4" date="1476377312" name="Cd_1.50_median_filter_size4.png" path="Cd_1.50_median_filter_size4.png" size="109127" user="zyvb951" version="1"
META FILEATTACHMENT attachment="Cd_1.50_medianBlur_size3.png" attr="" comment="Median blur test on the Cd spectrum image at 1.50mm with ksize=3" date="1476377354" name="Cd_1.50_medianBlur_size3.png" path="Cd_1.50_medianBlur_size3.png" size="112834" user="zyvb951" version="1"
META FILEATTACHMENT attachment="DarkFrame_20s_1_median_filter_size4.png" attr="" comment="Median filter test on the 20s Dark frame with median_filter size 4" date="1476377533" name="DarkFrame_20s_1_median_filter_size4.png" path="DarkFrame_20s_1_median_filter_size4.png" size="130848" user="zyvb951" version="1"
Line: 55 to 57
 
META FILEATTACHMENT attachment="Cad_plt_0.00.png" attr="" comment="Plot for Cd calibration for grating of 0.00mm" date="1476448117" name="Cad_plt_0.00.png" path="Cad_plt_0.00.png" size="77587" user="zyvb137" version="1"
META FILEATTACHMENT attachment="Cad_plt_6.50.png" attr="" comment="Plot for Cd calibration for grating of 6.50mm" date="1476448694" name="Cad_plt_6.50.png" path="Y:\4th year major project\plot figures\Cad_plt_6.50.png" size="54911" user="zyvb137" version="1"
META FILEATTACHMENT attachment="Cad_plot_10.00.png" attr="" comment="Plot for clad for grating of 10mm" date="1476449190" name="Cad_plot_10.00.png" path="Cad_plot_10.00.png" size="76848" user="zyvb137" version="1"
Added:
>
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META FILEATTACHMENT attachment="plot_figures.zip" attr="" comment="James' plots" date="1476450479" name="plot_figures.zip" path="plot_figures.zip" size="342622" user="zyvb951" version="1"

Revision 514 Oct 2016 - JamesAngthopo

Line: 1 to 1
 
META TOPICPARENT name="StewartBoogertSpectroscopy2016"
Hot pixel removal
Line: 33 to 33
 
  • This figure shows a plot of the number of photoelectrons as a function of pixel position, the plots on the top are with the original values, the plots on the bottom are where the average is taken for the 10 adjacent values.
  • Plot for Cd calibration for grating of 0.00mm:
    Cad_plt_0.00.png
Deleted:
<
<
  • Plot for Cd calibration for grating of 6.50mm:
    Cad_plt_6.50.png

  • Plot for Cd calibration for grating of 10.00mm:
    Cad_plt_10.0.png

  • Plot for Cd calibration with the shutters closed:
    Cad_plt_darkframe.png
 
  • Calib_cd_0.00.txt: All of the local peaks and its location in the x axis for cad_plt_0.00 plot

  • Calib_cd_6.50.txt: All of the local peaks and its location in the x axis for cad_plt_6.50 plot

  • Calib_cd_10.0.txt: All of the local peaks and its location in the x axis for cad_plt_10.00 plot
Added:
>
>
  • Plot for clad for grating of 10mm:
    Cad_plot_10.00.png
 
META FILEATTACHMENT attachment="Cd_1.50_median_filter_size4.png" attr="" comment="Median filter test on the Cd spectrum image at 1.50mm with size=4" date="1476377312" name="Cd_1.50_median_filter_size4.png" path="Cd_1.50_median_filter_size4.png" size="109127" user="zyvb951" version="1"
META FILEATTACHMENT attachment="Cd_1.50_medianBlur_size3.png" attr="" comment="Median blur test on the Cd spectrum image at 1.50mm with ksize=3" date="1476377354" name="Cd_1.50_medianBlur_size3.png" path="Cd_1.50_medianBlur_size3.png" size="112834" user="zyvb951" version="1"
META FILEATTACHMENT attachment="DarkFrame_20s_1_median_filter_size4.png" attr="" comment="Median filter test on the 20s Dark frame with median_filter size 4" date="1476377533" name="DarkFrame_20s_1_median_filter_size4.png" path="DarkFrame_20s_1_median_filter_size4.png" size="130848" user="zyvb951" version="1"
Line: 52 to 49
 
META FILEATTACHMENT attachment="Cd_6.50_median_filter_size4.png" attr="" comment="Median filter test on the Cd spectrum image at 6.50mm with median_filter size 4" date="1476378338" name="Cd_6.50_median_filter_size4.png" path="Cd_6.50_median_filter_size4.png" size="62616" user="zyvb951" version="1"
META FILEATTACHMENT attachment="Cd_6.50_medianBlur_size3.png" attr="" comment="Median blur test on the Cd spectrum image at 6.50mm with ksize=3" date="1476378393" name="Cd_6.50_medianBlur_size3.png" path="Cd_6.50_medianBlur_size3.png" size="62794" user="zyvb951" version="1"
META FILEATTACHMENT attachment="hot_pixel.py.txt" attr="" comment="Hot pixel removal test code - python - 20161013" date="1476378752" name="hot_pixel.py.txt" path="hot_pixel.py.txt" size="1480" user="zyvb951" version="1"
Deleted:
<
<
META FILEATTACHMENT attachment="Cad_plt_0.00.png" attr="" comment="Plot for cadmium calibration for grating of 0mm" date="1476393824" name="Cad_plt_0.00.png" path="Cad_plt_0.00.png" size="130991" user="zyvb137" version="1"
META FILEATTACHMENT attachment="Cad_plt_6.50.png" attr="" comment="Plot for cadmium calibration for grating of 6.5mm" date="1476394163" name="Cad_plt_6.50.png" path="Cad_plt_6.50.png" size="55145" user="zyvb137" version="1"
META FILEATTACHMENT attachment="Cad_plt_10.0.png" attr="" comment="Plot for cadmium calibration for grating of 10.0mm" date="1476394210" name="Cad_plt_10.0.png" path="Cad_plt_10.0.png" size="133045" user="zyvb137" version="1"
META FILEATTACHMENT attachment="Cad_plt_darkframe.png" attr="" comment="Plot for cadmium calibration with the shutters closed" date="1476394251" name="Cad_plt_darkframe.png" path="Cad_plt_darkframe.png" size="124139" user="zyvb137" version="1"
 
META FILEATTACHMENT attachment="Calib_cd_0.00.txt" attr="" comment="All of the local peaks for cad_plt_0.00 plot" date="1476395326" name="Calib_cd_0.00.txt" path="Calib_cd_0.00.txt" size="3137" user="zyvb137" version="1"
META FILEATTACHMENT attachment="Calib_cd_6.50.txt" attr="" comment="All of the local peaks for cad_plt_6.50 plot" date="1476395359" name="Calib_cd_6.50.txt" path="Calib_cd_6.50.txt" size="3142" user="zyvb137" version="1"
META FILEATTACHMENT attachment="Calib_cd_10.0.txt" attr="" comment="All of the local peaks for cad_plt_10.00 plot" date="1476395400" name="Calib_cd_10.0.txt" path="Calib_cd_10.0.txt" size="4428" user="zyvb137" version="1"
Added:
>
>
META FILEATTACHMENT attachment="Cad_plt_0.00.png" attr="" comment="Plot for Cd calibration for grating of 0.00mm" date="1476448117" name="Cad_plt_0.00.png" path="Cad_plt_0.00.png" size="77587" user="zyvb137" version="1"
META FILEATTACHMENT attachment="Cad_plt_6.50.png" attr="" comment="Plot for Cd calibration for grating of 6.50mm" date="1476448694" name="Cad_plt_6.50.png" path="Y:\4th year major project\plot figures\Cad_plt_6.50.png" size="54911" user="zyvb137" version="1"
META FILEATTACHMENT attachment="Cad_plot_10.00.png" attr="" comment="Plot for clad for grating of 10mm" date="1476449190" name="Cad_plot_10.00.png" path="Cad_plot_10.00.png" size="76848" user="zyvb137" version="1"

Revision 413 Oct 2016 - JamesAngthopo

Line: 1 to 1
 
META TOPICPARENT name="StewartBoogertSpectroscopy2016"
Hot pixel removal
Line: 39 to 39
 
  • Plot for Cd calibration with the shutters closed:
    Cad_plt_darkframe.png
Added:
>
>
  • Calib_cd_0.00.txt: All of the local peaks and its location in the x axis for cad_plt_0.00 plot

  • Calib_cd_6.50.txt: All of the local peaks and its location in the x axis for cad_plt_6.50 plot

  • Calib_cd_10.0.txt: All of the local peaks and its location in the x axis for cad_plt_10.00 plot
 
META FILEATTACHMENT attachment="Cd_1.50_median_filter_size4.png" attr="" comment="Median filter test on the Cd spectrum image at 1.50mm with size=4" date="1476377312" name="Cd_1.50_median_filter_size4.png" path="Cd_1.50_median_filter_size4.png" size="109127" user="zyvb951" version="1"
META FILEATTACHMENT attachment="Cd_1.50_medianBlur_size3.png" attr="" comment="Median blur test on the Cd spectrum image at 1.50mm with ksize=3" date="1476377354" name="Cd_1.50_medianBlur_size3.png" path="Cd_1.50_medianBlur_size3.png" size="112834" user="zyvb951" version="1"
META FILEATTACHMENT attachment="DarkFrame_20s_1_median_filter_size4.png" attr="" comment="Median filter test on the 20s Dark frame with median_filter size 4" date="1476377533" name="DarkFrame_20s_1_median_filter_size4.png" path="DarkFrame_20s_1_median_filter_size4.png" size="130848" user="zyvb951" version="1"
Line: 50 to 56
 
META FILEATTACHMENT attachment="Cad_plt_6.50.png" attr="" comment="Plot for cadmium calibration for grating of 6.5mm" date="1476394163" name="Cad_plt_6.50.png" path="Cad_plt_6.50.png" size="55145" user="zyvb137" version="1"
META FILEATTACHMENT attachment="Cad_plt_10.0.png" attr="" comment="Plot for cadmium calibration for grating of 10.0mm" date="1476394210" name="Cad_plt_10.0.png" path="Cad_plt_10.0.png" size="133045" user="zyvb137" version="1"
META FILEATTACHMENT attachment="Cad_plt_darkframe.png" attr="" comment="Plot for cadmium calibration with the shutters closed" date="1476394251" name="Cad_plt_darkframe.png" path="Cad_plt_darkframe.png" size="124139" user="zyvb137" version="1"
Added:
>
>
META FILEATTACHMENT attachment="Calib_cd_0.00.txt" attr="" comment="All of the local peaks for cad_plt_0.00 plot" date="1476395326" name="Calib_cd_0.00.txt" path="Calib_cd_0.00.txt" size="3137" user="zyvb137" version="1"
META FILEATTACHMENT attachment="Calib_cd_6.50.txt" attr="" comment="All of the local peaks for cad_plt_6.50 plot" date="1476395359" name="Calib_cd_6.50.txt" path="Calib_cd_6.50.txt" size="3142" user="zyvb137" version="1"
META FILEATTACHMENT attachment="Calib_cd_10.0.txt" attr="" comment="All of the local peaks for cad_plt_10.00 plot" date="1476395400" name="Calib_cd_10.0.txt" path="Calib_cd_10.0.txt" size="4428" user="zyvb137" version="1"

Revision 313 Oct 2016 - WilliamBurrows

Line: 1 to 1
 
META TOPICPARENT name="StewartBoogertSpectroscopy2016"
Hot pixel removal
Line: 28 to 28
  -- WillBurrows - 13 Oct 2016
Changed:
<
<
Plots and trying to smooth out the curve
  • This Figure shows the plot of the pixal value against the number of photoelectrons, the plots on the top are with the original values, the plots on the bottom are where the average is taken for the 10 adjacent values.
  • Plot for cadmium calibration for grating of 0mm:
    Cad_plt_0.00.png
>
>
Smoothing curves
 
Changed:
<
<
  • Plot for cadmium calibration for grating of 6.5mm:
    Cad_plt_6.50.png
>
>
  • This figure shows a plot of the number of photoelectrons as a function of pixel position, the plots on the top are with the original values, the plots on the bottom are where the average is taken for the 10 adjacent values.
  • Plot for Cd calibration for grating of 0.00mm:
    Cad_plt_0.00.png
 
Changed:
<
<
  • Plot for cadmium calibration for grating of 10.0mm:
    Cad_plt_10.0.png
>
>
  • Plot for Cd calibration for grating of 6.50mm:
    Cad_plt_6.50.png
 
Changed:
<
<
  • Plot for cadmium calibration with the shutters closed:
    Cad_plt_darkframe.png
>
>
  • Plot for Cd calibration for grating of 10.00mm:
    Cad_plt_10.0.png

  • Plot for Cd calibration with the shutters closed:
    Cad_plt_darkframe.png
 
META FILEATTACHMENT attachment="Cd_1.50_median_filter_size4.png" attr="" comment="Median filter test on the Cd spectrum image at 1.50mm with size=4" date="1476377312" name="Cd_1.50_median_filter_size4.png" path="Cd_1.50_median_filter_size4.png" size="109127" user="zyvb951" version="1"
META FILEATTACHMENT attachment="Cd_1.50_medianBlur_size3.png" attr="" comment="Median blur test on the Cd spectrum image at 1.50mm with ksize=3" date="1476377354" name="Cd_1.50_medianBlur_size3.png" path="Cd_1.50_medianBlur_size3.png" size="112834" user="zyvb951" version="1"

Revision 213 Oct 2016 - JamesAngthopo

Line: 1 to 1
 
META TOPICPARENT name="StewartBoogertSpectroscopy2016"
Hot pixel removal
Line: 25 to 25
 
  • Testing code on a much brighter section of the spectrum (6.50mm) also shows hot pixel reduction
Deleted:
<
<
 
Added:
>
>
-- WillBurrows - 13 Oct 2016
 
Added:
>
>
Plots and trying to smooth out the curve
  • This Figure shows the plot of the pixal value against the number of photoelectrons, the plots on the top are with the original values, the plots on the bottom are where the average is taken for the 10 adjacent values.
  • Plot for cadmium calibration for grating of 0mm:
    Cad_plt_0.00.png
 
Added:
>
>
  • Plot for cadmium calibration for grating of 6.5mm:
    Cad_plt_6.50.png
 
Changed:
<
<
-- WillBurrows - 13 Oct 2016
>
>
  • Plot for cadmium calibration for grating of 10.0mm:
    Cad_plt_10.0.png

  • Plot for cadmium calibration with the shutters closed:
    Cad_plt_darkframe.png
 
META FILEATTACHMENT attachment="Cd_1.50_median_filter_size4.png" attr="" comment="Median filter test on the Cd spectrum image at 1.50mm with size=4" date="1476377312" name="Cd_1.50_median_filter_size4.png" path="Cd_1.50_median_filter_size4.png" size="109127" user="zyvb951" version="1"
META FILEATTACHMENT attachment="Cd_1.50_medianBlur_size3.png" attr="" comment="Median blur test on the Cd spectrum image at 1.50mm with ksize=3" date="1476377354" name="Cd_1.50_medianBlur_size3.png" path="Cd_1.50_medianBlur_size3.png" size="112834" user="zyvb951" version="1"
Line: 39 to 45
 
META FILEATTACHMENT attachment="Cd_6.50_median_filter_size4.png" attr="" comment="Median filter test on the Cd spectrum image at 6.50mm with median_filter size 4" date="1476378338" name="Cd_6.50_median_filter_size4.png" path="Cd_6.50_median_filter_size4.png" size="62616" user="zyvb951" version="1"
META FILEATTACHMENT attachment="Cd_6.50_medianBlur_size3.png" attr="" comment="Median blur test on the Cd spectrum image at 6.50mm with ksize=3" date="1476378393" name="Cd_6.50_medianBlur_size3.png" path="Cd_6.50_medianBlur_size3.png" size="62794" user="zyvb951" version="1"
META FILEATTACHMENT attachment="hot_pixel.py.txt" attr="" comment="Hot pixel removal test code - python - 20161013" date="1476378752" name="hot_pixel.py.txt" path="hot_pixel.py.txt" size="1480" user="zyvb951" version="1"
Added:
>
>
META FILEATTACHMENT attachment="Cad_plt_0.00.png" attr="" comment="Plot for cadmium calibration for grating of 0mm" date="1476393824" name="Cad_plt_0.00.png" path="Cad_plt_0.00.png" size="130991" user="zyvb137" version="1"
META FILEATTACHMENT attachment="Cad_plt_6.50.png" attr="" comment="Plot for cadmium calibration for grating of 6.5mm" date="1476394163" name="Cad_plt_6.50.png" path="Cad_plt_6.50.png" size="55145" user="zyvb137" version="1"
META FILEATTACHMENT attachment="Cad_plt_10.0.png" attr="" comment="Plot for cadmium calibration for grating of 10.0mm" date="1476394210" name="Cad_plt_10.0.png" path="Cad_plt_10.0.png" size="133045" user="zyvb137" version="1"
META FILEATTACHMENT attachment="Cad_plt_darkframe.png" attr="" comment="Plot for cadmium calibration with the shutters closed" date="1476394251" name="Cad_plt_darkframe.png" path="Cad_plt_darkframe.png" size="124139" user="zyvb137" version="1"

Revision 113 Oct 2016 - WilliamBurrows

Line: 1 to 1
Added:
>
>
META TOPICPARENT name="StewartBoogertSpectroscopy2016"
Hot pixel removal

  • Median filter test on the Cd spectrum image at 1.50mm with size=4:
    Cd_1.50_median_filter_size4.png
  • Top images are pre filter, bottom are post filter.
  • Spectrums are the number of photoelectrons as a function of the pixel position
  • Adjusting the size to 1 yields no removal, size = 2 gives mediocre removal and increasing the size past 4 gives no further improvement.

  • Median blur test on the Cd spectrum image at 1.50mm with ksize=3:
    Cd_1.50_medianBlur_size3.png
  • Adjusting the ksize to 1 yields no removal and increasing the ksize past 3 gives no further improvement.

  • Both scipy.ndimage.filters.median_filter and cv2.medianBlur remove hot pixels from this test image with mostly the same result.

  • Median filter test on the 20s dark frame with median_filter size 4:
    DarkFrame_20s_1_median_filter_size4.png

  • Median blur test on the 20s dark frame with ksize=3:
    DarkFrame_20s_1_medianBlur_size3.png

  • Reducing the size and ksize below 4 and 3 respectively yields minimal noise reduction.
  • If removing the hot pixels from the spectrum images works, is processing the dark frames a requirement?

  • Median filter test on the Cd spectrum image at 6.50mm with size 4:
    Cd_6.50_median_filter_size4.png

  • Median blur test on the Cd spectrum image at 6.50mm with ksize=3:
    Cd_6.50_medianBlur_size3.png

  • Testing code on a much brighter section of the spectrum (6.50mm) also shows hot pixel reduction

-- WillBurrows - 13 Oct 2016

META FILEATTACHMENT attachment="Cd_1.50_median_filter_size4.png" attr="" comment="Median filter test on the Cd spectrum image at 1.50mm with size=4" date="1476377312" name="Cd_1.50_median_filter_size4.png" path="Cd_1.50_median_filter_size4.png" size="109127" user="zyvb951" version="1"
META FILEATTACHMENT attachment="Cd_1.50_medianBlur_size3.png" attr="" comment="Median blur test on the Cd spectrum image at 1.50mm with ksize=3" date="1476377354" name="Cd_1.50_medianBlur_size3.png" path="Cd_1.50_medianBlur_size3.png" size="112834" user="zyvb951" version="1"
META FILEATTACHMENT attachment="DarkFrame_20s_1_median_filter_size4.png" attr="" comment="Median filter test on the 20s Dark frame with median_filter size 4" date="1476377533" name="DarkFrame_20s_1_median_filter_size4.png" path="DarkFrame_20s_1_median_filter_size4.png" size="130848" user="zyvb951" version="1"
META FILEATTACHMENT attachment="DarkFrame_20s_1_medianBlur_size3.png" attr="" comment="Median blur test on the 20s dark frame with ksize=3" date="1476377568" name="DarkFrame_20s_1_medianBlur_size3.png" path="DarkFrame_20s_1_medianBlur_size3.png" size="129333" user="zyvb951" version="1"
META FILEATTACHMENT attachment="Cd_6.50_median_filter_size4.png" attr="" comment="Median filter test on the Cd spectrum image at 6.50mm with median_filter size 4" date="1476378338" name="Cd_6.50_median_filter_size4.png" path="Cd_6.50_median_filter_size4.png" size="62616" user="zyvb951" version="1"
META FILEATTACHMENT attachment="Cd_6.50_medianBlur_size3.png" attr="" comment="Median blur test on the Cd spectrum image at 6.50mm with ksize=3" date="1476378393" name="Cd_6.50_medianBlur_size3.png" path="Cd_6.50_medianBlur_size3.png" size="62794" user="zyvb951" version="1"
META FILEATTACHMENT attachment="hot_pixel.py.txt" attr="" comment="Hot pixel removal test code - python - 20161013" date="1476378752" name="hot_pixel.py.txt" path="hot_pixel.py.txt" size="1480" user="zyvb951" version="1"
 
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