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META TOPICPARENT |
name="StewartBoogertAstronomy" |
Online image analysis |
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- 23rd June. Modified Cluster_Finder class so that the overlaying plot transparency can be adjusted (useful when implementing Qt interface later). Cluster_Analysis class wrapped up and useful stats about identified clusters produced. Git adopted as a version control system for the rest of the project, first pushes to master made (hopefully breaking nothing), repository can be found on bitbucket here. Read up on photometry aperture in order to plan rest of work through the week. Still need to implement a 2d Gaussian fit of an identified cluster, planning to use curve fit for this but unsure how to proceed currently as not quite sure what I am fitting. Assuming it is the intensities f(z) for each coordinate point z = (x,y).
-- WillParker - 23 Jun 2014 |
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- 27 June. Created Photmetry_Aperture analysis which successfully calculates and plots relevant aperture measurements of identified clusters of stars. Full width at half height maximum method has been implemented whilst other statistical methods have corrected (RMS, Std dev, etc).

Here the red circles identify the varying photometry aperture. Various cosmetic changes were undertaken such as changing the colourmaps for the plots and setting transparency (rgb alpha) values. Came up with an idea to create a Class_Tester class which enables easy testing of the developing codebase helping to ensure that any broken code does not get pushed to the master branch. I came up with a method to count the number of pixels within the bounding circles marked on the plots above. Here is a sample of the statistical output of the program to a terminal window thus far:
-- WillParker - 27 Jun 2014 |
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META FILEATTACHMENT |
attachment="all-clusters.png" attr="" comment="" date="1403253334" name="all-clusters.png" path="all-clusters.png" size="110299" user="zxap018" version="1" |
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attachment="cluster-centre.png" attr="" comment="" date="1403253608" name="cluster-centre.png" path="cluster-centre.png" size="92687" user="zxap018" version="1" |
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META FILEATTACHMENT |
attachment="clusters.png" attr="" comment="" date="1403884842" name="clusters.png" path="clusters.png" size="77388" user="zxap018" version="1" |
META FILEATTACHMENT |
attachment="cluster_aperture.png" attr="" comment="" date="1403885347" name="cluster_aperture.png" path="cluster_aperture.png" size="50980" user="zxap018" version="1" |
META FILEATTACHMENT |
attachment="cluster_output.png" attr="" comment="" date="1403885901" name="cluster_output.png" path="cluster_output.png" size="26731" user="zxap018" version="1" |
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