Code and Coding
From Shpyrko Group Wiki
Analysis Code
Below are available versions of XPCS code in MatLab. Run XPCS_MainGUI.m to start the program. Please, contact Sebastian if you have suggestions or problems.
May 08, 2010
File:XPCS beta2.8.zip
- Added use of Dynamic Mask for analysis. Masks are created based on the individual image in Mask tool
- Added feature to expand or contract the region of interest (ROI) boundary by a pixel in Mask tool
- Added two-variable 2nd-order polynomial fit in ROI in Mask tool
- Added two-variable elliptical Gaussian fit in ROI in Mask tool
- Added find center using center of mass intensity in ROI in Mask tool
- Added find center using two-variable elliptical Gaussian fit in ROI in Mask tool
- Added find center using minimum width annulus in ROI in Mask tool
- Added export image directly in Mask tool
- Added use of masks in background subtraction tool
- Modified background subtraction tool layout
- Added viewing options (zoom, pan, rotate) in setup definition tool
- Modified angle definitions in setup definition tool to conform to reflection geometry standards and use sample axis definitions
November 06, 2010
File:XPCS beta2.4.zip
- Added ability to remove image during mask editing to see the mask only
- Fixed error while hiding the mask
- Added image mapping including: linear, square root, logarithmic, and tone mapping. Replaced XPCS_LogCheck function with new XPCS_mapScale function
- Added image coloring including: Gray, Spectrum, Rainbow, Heat, and Cool
- Added interactive tools: arrow, zoom, pan, data cursor, reset view
- Remembers which file was loaded last or if the entire file list has been loaded, so that Analysis and movies do not have to reaload the same images
- Edit XPCS_maskOpenFile function to take advantage of checking last file opened and also added capability to call function with specific file without calling dialog box
- Changed how images are displayed by adding an extra scaled image, which can be reused to display, instead of repeatedly calculating the image map
- Modified how the mask.thedata variable read in works; can now store many images, instead if reloading a specific frame
- Modified Main file list to store number of frames per file
- Created a new movieGUI, to control playing several frames of several files.
- Added pause time option and autoscale option in movie control
- Added movie export capability
- Modified XPCS_openFolder to load only .hdf and .fits files from the specified folder
October 25, 2010
File:XPCS beta2.2.zip
- Redefined how XPCS_fileReader and XPCS_convImgSize functions are called to expand their applicability
- Simplified Code using the previous functions
- Changed how XPCS_movie function works, allowing reading of multiple, multi-image .fits files
October 21, 2010
File:XPCS beta2.1.zip
- Basic tool to load .hdf and .fits files and analyze within a desired region.
- Import/export masks
- Draw masks with rectangles, circles, polygons, or freehand
- Define masked based on certain threshold value
- Play movie of data
- Define the setup using; automatically calculates q-scale across CCD
- Background subtraction via automatically scaled images or defined values
- Define independent data sets for analysis
- Average over defined images
- Autocorrelation and normalized difference method both compared to first or previous image
