Command summary

IADD

add image or scalar value

IAZIMUTH

azimuthal distribution around point

IBLUR

smooth image

IBOX

define box of interest

IBROWSE

inspect values around selected points

ICENTROID

get centroid of circular region

ICIRCLE

define circle of interest

ICLEAR

clear current zone

ICLOSE

release image

ICOLOUR

select or change colour table

ICONTOUR

contour image

ICURRENT

show current position etc

IDISPLAY

display image

IDIV

divide by specified image or scalar

IDMSTOD

dd:mm:ss to decimal degree

IDTODMS

decimal degree to dd:mm:ss

IDTOHMS

decimal degree to hh:mm:ss

IHMSTOD

hh:mm:ss to decimal degree

IEXCLUDE

remove pixels, sources or regions (set QUAL=IGNORE)

IGRID

put coordinate grid on image

IHIST

histogram pixel values

IKEY

put key at side of image

ILOAD

load an image

IMARK

mark positions on plot

IMASK

change QUALITY mask

IMODE

change input mode CURSOR/KEYBOARD

IMOSAIC

mosaic several images into one

IMULT

multiply by image or scalar value

INOISE

add random noise

IPATCH

patch bad pixels

IPEAKS

mark peaks above threshold

IPLOT

plot 1D data

IPIXEL

pixel plot of image

IPOLAR

polar distribution

IPOSIT

specifiy position on image

IPSF

put PSF on radial distribution

IRADIAL

radial distribution

IREGION

define a spatial region

ISAVE

save image

ISAVE1D

save 1D derivatives

ISCALE

change scaling of pixel plot

ISEP

angular separation of two points

ISLICE

profile of section of image

ISTATS

basic statistics

IBOXSTATS

statistics of specified box

ICIRCSTATS

statistics of specified circle

ISUB

subtract image or scalar value

ISURFACE

surface plot of image

IUNDO

undo last processing step

IWHOLE

select whole image

IXCONV

2D convolution of images

IZED

bin vertically to image plane from cube

IZOOM

zoom image display

IUNZOOM

unzoom image display