*not to be confused with features!
Data Viewing Tools:(way out of date, fix this up!!!)
1) nview4 - interactively display up to four images at once along with their histograms from a listing file - made like this: ls -1 *.FIT of the files you want to view. The first image is displayed starting in the upper left, second image in upper right, third image in lower left, fourth image in lower right. Each image has a histogram shown below as well as its mean and standard deviation. Typing a zero causes the next image to display, typing any other number causes the sequence to jump back (or forward) to that image. The displayed images have been subsampled by a factor of two. 2) nview - similar to nview4 but displays only one image at a time at full resolution.Data Analysis Tools:
1) nstat - calculates average and std for each image in a list file and prints this information to a file named nstat.log (three column ascii file) 2) nsort 3) nearcube.pro - read in a series of single band images to a cube for processing (template program**) 4) nratio.pro - ratio two bands of a cube. 5) nextract - pull off label info and write to file nextract.log 6) lin_check - linearity check from a list of images 7) printlabels - print to screen label info for a list of images. OTHER REQUIRED FILES: from: usgs ---------- get_list.pro from: idlastro.gsfc.nasa.gov (stuff to read FITS format files) ------------------------------------------ ieee_to_host.pro sxpar.pro strnumber.pro readfits.pro
Mean DN 20580359 76 20580369 423 20580379 423 20580389 422They all have indentical params except the 359 has a +15 cur of 76 vs 77 but I think this is not significant?