clusex.lib package

Submodules

clusex.lib.cgpng module

class clusex.lib.cgpng.GUI(master, png_paths, pngfile_out, include_header=False, extensiones=('.png', '.jpg', '.jpeg'))

Bases: object

ask_quit()

classify(selected_class)

display_image(path)

on_enter(event)

on_leave(event)

skip_image()

undo_last()

update_image_display()

clusex.lib.cgpng.cgPNG(img_folder, tsv_out, include_header=False)

clusex.lib.cgpng.natural_key(s: str)

Human sorting: img2, img10 -> 2, 10.

clusex.lib.check module

clusex.lib.check.CheckFlag(val, check)

Check for flag contained in $val, returns 1 if found

clusex.lib.check.CheckKron(xpos, ypos, x, y, R, theta, q)

check if position is inside of the Kron Ellipse saturaded region returns True if object center is in Ellipse region

clusex.lib.check.CheckSatReg2(x, y, filein)

Check if object is inside of saturated region. returns True if at least one pixel is inside

clusex.lib.check.GetAxis(Image)

Get number of rows and columns from the image

clusex.lib.check.GetCounts(Image)

Get Counts from Image

clusex.lib.check.GetWCS(Image)

Get World Cordinate System info

clusex.lib.classify_galaxies module

clusex.lib.ds9 module

clusex.lib.ds9.ds9kron(sexfile, regfile, scale, offset)

Creates ds9 region file to check output catalog

clusex.lib.galaxypng module

Created on Mon Apr 28 16:13:00 2025

@author: samnay

clusex.lib.galaxypng.DesiFromSexCat(sexcat='hotcold.cat', output_dir='desi_images', scale=1, offset=0, desi_pixscale=0.262, image_plate=0.68, max_mag=18, starclass=0.6, sdss=False)

clusex.lib.galaxypng.GetSize(x, y, R, theta, ell)

this subroutine get the maximun

clusex.lib.getdesi module

class clusex.lib.getdesi.DownImage(ra, dec, scale=0.3515625, width=512, height=512, savename=None, sdss=False)

Bases: object

Class for an DESI/SDSS png image.

RA, DEC - J2000, degrees SCALE - plate scale in arsec per pixel WIDTH, HEIGHT - size of image in pixels SAVENAME - if none provided, defaults to ‘object.jpg’ DR - integer value for SDSS data release.

downloadDESI()

downloadSDSS()

show()

clusex.lib.getdesi.desiList(file, scale=0.262, width=512, height=512, show=False, sdss=False)

clusex.lib.getdesi.desiListParser()

Function for argument parsing

clusex.lib.getdesi.simg(ra=37.228, dec=0.37, scale=0.396, width=512, height=512, savename=None, show=True, sdss=False)

Get jpg image, view it, and remove temporary jpg file.

clusex.lib.init module

class clusex.lib.init.Params

Bases: object

SexArSort = 'sortar.cat'

at1 = 1

at2 = 1

bf1 = 1

bf2 = 1

bs1 = 1

bs2 = 1

create = 0

da1 = 1

da2 = 1

dm1 = 1

dm2 = 1

dn1 = 1

dn2 = 1

dt1 = 1

dt2 = 1

flagDs9 = 1

flagminrad = False

gain = 10

image = 'none.fits'

joinscale = 0.7

minrad = 10

minsatsize = 10

offset = 0

outcold = 'cold.sex'

outhot = 'hot.sex'

output = 'hc.cat'

output2 = 'hotcold.cat'

plate = 1

red = 0.3

regoutfile = 'hotcold.reg'

run1 = 1

run2 = 1

satfileout = 'sat.reg'

satlevel = 100000

satmethod = 3

satoffset = 1

satq = 0.1

satscale = 1

scale = 1

scalecor = 1

seeing = 2

sexfile = 'default.sex'

tol = 0.5

zpt = 25

clusex.lib.init.printWelcome()

clusex.lib.join module

clusex.lib.join.joinsexcat(maincat, secondcat, output, JoinScale, incFlag=False, red=0.1, minrad=5)

merges two Sextractor catalogs

clusex.lib.join.putFlagSat(sexfile, sexfile2, regfile)

Put flags on objects which are inside saturated regions

clusex.lib.joinfiles module

clusex.lib.joinfiles.extrae_id(path: str) → int

Extract the ID from namefile: imagen_0004.png -> 4. returns ValueError if it is not found.

clusex.lib.joinfiles.joinclass(archivo1, archivo2, salida)

clusex.lib.make module

clusex.lib.make.CatArSort(SexCat, scale, offset, SexArSort, NCol, NRow)

clusex.lib.make.EraseObjectMask(MaskFile, tempMask, obj, fill=0)

clusex.lib.make.EraseObjectMask2(maskimg, obj)

clusex.lib.make.GetPng(data, counts, wcs, dpi=200, cmap='gray_r', namepng='obj.png', bri=33, con=0.98)

Converts image into a PNG image with axis coordinates, inverted colormap, log/zmax style

clusex.lib.make.GetSize(x, y, R, theta, ell, ncol, nrow)

this subroutine get the maximun

clusex.lib.make.MakeImage(newfits, sizex, sizey)

create a new blank Image

clusex.lib.make.MakeKron(imagemat, idn, x, y, R, theta, ell, xmin, xmax, ymin, ymax)

This subroutine create a Kron ellipse within a box defined by: xmin, xmax, ymin, ymax

clusex.lib.make.MakeMask(maskimage, catfile, scale, offset, regfile)

Create a mask image using ellipses for every Object of catfile. Now includes offset

clusex.lib.make.MakeObjImg(image, mask)

make object image

clusex.lib.make.MakeSatBox(maskimage, region, val, ncol, nrow)

Create a mask for saturated regions

clusex.lib.make.MakeStamps(image, catalog, maskimage, stretch, skyoff, dpi, cmap, scale, offset, bright, contrast, frac, fracmax, galclass)

clusex.lib.make.ShowImg(img: array, xc: int, yc: int, wcs, namepng='obj.png', dpival=100, sky=1, cmap='viridis', bri=0, con=1, frac=1, fracmax=1)

This routine shows the image

clusex.lib.maskellipse module

clusex.lib.maskellipse.applyMask(img_path, number, a, b, theta_deg, outdir)

clusex.lib.maskellipse.extrae_id(path: str) → int

Extract ID number from file path imagen_0004.png -> 4. returns ValueError if number is not found

clusex.lib.maskellipse.maskImage(sexcat, paths, scale, offset, desi_pixscale, image_plate, out_dir)

clusex.lib.radcor module

class clusex.lib.radcor.RadMod(sexcat1: str, sexcat2: str, newcat: str, tol=1, red=1, minrad=10, scalecor=1)

Bases: object

CheckFlag(val: int, check: int) → bool

Check for flag contained in val, returns True if found

clusex.lib.read module

clusex.lib.read.read_config(confile)

clusex.lib.read.readcon(params, confile)

clusex.lib.satbox module

class clusex.lib.satbox.SatBox(params: object)

Bases: object

AbsorbSmallBox(xx, yy, sx, sy, N)

Removes small boxes inside big boxes

AreTwoBoxSame(xx1, yy1, sx1, sy1, xx2, yy2, sx2, sy2)

Check if two boxes are the same

BoxCenterInPoint(xx, yy, xmin, xmax, ymin, ymax)

BoxCorners2Side(xmin, xmax, ymin, ymax)

BoxSide2Corners(X, Y, sidex, sidey)

CheckFlag(val, check)

Check for flag contained in $val, returns True if found

CheckSatReg2(x, y, filein)

Check if object is inside of saturated region. returns True if at least one pixel is inside

CorrectCorners(xmin, xmax, ymin, ymax, imaxx, imaxy)

Ds9SatBox(image, satfileout, sexcat, satscale, satoffset, satlevel, minsatsize, method, satq=0.5)

Creates a file for ds9 which selects bad saturated regions

GetAxis(Image)

Get number of rows and columns from the image

GetMaxCor(image, xmin, xmax, ymin, ymax)

Get coordinate (x,y) where the max value in counts

GetMaxCor2(image, xmin, xmax, ymin, ymax)

Get coordinate (x,y) where the max value in counts. Avoids negative pixels

GetSatBox(image, satfileout, sexcat, satlevel, minsatsize, satq)

Obtains the saturated boxes from the sextractor catalog

IncludeBoxCenterInPoint(xx, yy, xmin, xmax, ymin, ymax)

combines the two methods

IncludePointInBox(xx, yy, xmin, xmax, ymin, ymax)

IsBoxInBox(xx1, yy1, sx1, sy1, xx2, yy2, sx2, sy2)

Check if box is inside another box

IsPointInBox(xx, yy, xmin, xmax, ymin, ymax)

RemoveDupBox(xx, yy, sx, sy, N)

Removes duplicated boxes and small boxes inside big boxes

ResizeBox(xx, yy, sx, sy, N)

putflagsat(sexfile, sexfile2, regfile)

Put flags on objects which are inside saturated regions

clusex.lib.sky module

class clusex.lib.sky.SkyCal

Bases: object

This class compute the sky using two methods: random boxes and sky gradient

CorSize(xell, yell)

Correct size for image borders

GetEllipSky(ImageFile, MaskFile, xx, yy, thetadeg, q, Rinit, width, namering, ringmask, outliers=False)

Gradient sky method

GetRandBoxSky(Rinit, Rmax)

compute mean, std, and median from random selected boxes

GetRandBoxSky2(Rinit, Rmax)

compute mean, std, and median from random selected boxes

GetRandomCoord(coordinates)

choose xinit, and yinit from coordinates

GetRandomPatch(imagemat, mimg, box, coordinates)

get a random box patch of the imagemat

GetRingMask(masksky, idx)

obtains the ring selected by index idx

GetSize(x, y, R, theta, q, ncol, nrow)

this subroutine get the maximun and minimim pixels for Kron and sky ellipse

GetXYRBorder()

this subroutine get the coordinates of the border

MakeCoord(xmino, xmaxo, ymino, ymaxo, xmaxf, ymaxf)

creates (x,y) coordinates between the inner and outer box

MakeKron(imagemat, idn, x, y, R, theta, q, xmin, xmax, ymin, ymax)

This subroutine create a Kron ellipse within a box defined by: xmin, xmax, ymin, ymax

RandBox(ImageFile, MaskFile, xx, yy, thetadeg, q, Rinit, box, num, Rmax, outliers=False)

random box method to compute sky

clusex.lib.writesex module

clusex.lib.writesex.runsex(params)

clusex.lib.writesex.wsex(params)

Module contents