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Comparison with other image processing frameworks

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The following table may be useful for people migrating from other frameworks, and for identifying missing functionality in JuliaImages. Note that there are relevant packages which have not been integrated into more general frameworks or hosted at JuliaImages (e.g., DICOM.jl, etc.); such functionality is not documented here. This table is certainly not complete, and additions/corrections are welcome.

Operation JuliaImages scikit-image + NumPy Matlab (ImageProcessing + ComputerVision)

Input/output

Read image file

load

imread

imread

Write image file

save

imsave

imwrite

Image file metadata

magickinfo (ImageMagick.jl)

imfinfo

Test images

testimage

astronaut etc.

“cameraman.tif” etc

Element type and color

Change numeric precision

float32, float64, n0f8, etc.

img_as_float etc

im2double etc

Change color space

HSV.(img) etc.

rgb2hsv etc.

rgb2lab etc.

Whitepoint adjustment

map whitebalance (Colors.jl)

makecform

High dynamic range

tonemap

Intensity & quantization

Clamping

clamp01, clamp01nan

Linear scaling

LinearStretching, scaleminmax, etc.

rescale_intensity

imadjust

Nonlinear scaling

GammaCorrection

adjust_gamma

imadjust

Compute histogram

build_histogram

histogram

imhist

Histogram equalization

Equalization

equalize_hist

histeq

Adaptive equalization

AdaptiveEqualization

equalize_adapthist

adapthisteq

Reference histogram matching

Matching

match_histograms

imhistmatch

Quantization

map anonymous function

imquantize

Threshold estimation

otsu_threshold

threshold_otsu etc.

graythresh etc.

Visualization and interactivity

Visualization

imshow (ImageView.jl), mosaicview

imshow

imshow, implay, montage, etc.

Contrast adjustment

ImageView.jl

imcontrast

Pixel information

ImageView.jl

impixelinfo

Distance measurement

imdistline

Text display of region

impixelregion

Zooming/scrolling

ImageView.jl and GtkUtilities.jl

imshow

imscrollpanel etc.

Interactive colormap

imcolormaptool

Region selection

RectangleTool etc.

imrect, imellipse, imfreehand, etc.

Image comparison

colorview, mosaicview

imshowpair, imfuse

Label colorization

IndirectArray, ColorizedArray

label2rgb

label2rgb

Annotation

Draw lines

line, line! (ImageDraw.jl)

line, polygon

line (visualization only)

Draw circles/ellipses

circle!, ellipse! (ImageDraw.jl)

circle, ellipse

viscircles (visualization only)

Transformations

Resize

imresize, restrict

resize

imresize

Image pyramids

gaussian_pyramid, restrict

pyramid_gaussian etc.

impyramid

Rotate

imrotate

rotate

imrotate

Translate

warp

imtranslate

General geometric transformation

warp

warp

imwarp

Hough transform

hough_transform_standard, hough_circle_gradient

hough_circle, etc.

hough

Radon transform

radon, iradon

radon, iradon

Distance transform

feature_transform, distance_transform

bwdist, graydist

Registration

Statistics and image comparison

Image differences

ssd, sad, mse, rmse etc.

compare_mse, compare_nrmse

immse

Min/max/mean

minfinite, maxfinite, meanfinite

minimum, maximum, mean

nanmax, etc.

Entropy

entropy

entropy

entropy

quality assessment

PSNR, SSIM

compare_psnr, compare_ssim

psnr, ssim

colorfulness

colorfulness

Filtering and padding

Linear filtering

imfilter

gaussian, etc.

imfilter

Median/max/quantile filtering

mapwindow

median/max etc.

nlfilter, medfilt2, etc.

Other nonlinear filtering (e.g., std)

mapwindow

nlfilter, stdfilt

Gradients

imgradients

sobel_h etc.

imgradientxy etc.

Integral image

integral_image

integral_image

integralImage

Padding

padarray

pad

padarray

Deconvolution

wiener (Deconvolution.jl)

richardson_lucy, weiner, etc.

deconvlucy, deconvwnr, etc.

Features

Edge detection

imedge, canny

canny

edge

Corner detection

imcorner, fastcorners

corner_harris etc.

detectFASTFeatures

Blob detection

blob_LoG

blob_log etc.

Local binary patterns

lbp etc. (ImageFeatures.jl)

local_binary_pattern

extractLBPFeatures

Histogram of oriented gradients

HOG (ImageFeatures.jl)

hog

extractHOGFeatures

Gray-level co-occurence

glcm etc. (ImageFeatures.jl)

greycomatrix

graycomatrix

Point descriptors

BRIEF, ORB, etc. (ImageFeatures.jl)

BRIEF, ORB, etc.

detectBRISK etc.

Feature matching

match_keypoints (ImageFeatures.jl)

match_descriptors

matchFeatures

Segmentation

Connected components

label_components

label

bwconncomp, bwlabel

Foreground/background

active_contour

activecontour

Clustering

kmeans, fuzzy_cmeans, mean_shift (Clustering.jl)

quickshift, slic

Marker segmentation

seeded_region_growing

random_walker

imsegfmm

Watershed

watershed

watershed

watershed

Morphological operations

Dilation

dilate

dilation, binary_dilation

imdilate

Erosion

erode

Opening

opening

opening

imopen

Closing

closing

closing

imclose

Top-hat filtering

tophat

tophat etc.

imtophat

Bottom-hat filtering

bothat

bottomhat

imbothat

Regional max/min

mapwindow

filters.rank.maximum etc.

imregionalmax etc.

Convex hull

convexhull

convex_hull_image

bwconvhull

Borders

clearborder

clear_border

imclearborder

Boundaries

find_boundaries

boundarymask

Filling

imfill

remove_small_holes

imfill, regionfill