Table of Contents  ▸  List of Commands

◀  Adding Custom Commands    |    Funny Oneliners  ▶

List of Commands

All available G'MIC commands are listed below, by categories. An argument specified between [] or starting by _ is optional except when standing for an existing image [image], where image can be either an index number or an image name. In this case, the [] characters are mandatory when writing the item. Note that all images that serve as illustrations in this reference documentation are normalized in range [0,255] before being displayed. You may need to do this explicitly (command normalize 0,255) if you want to save and view images with the same aspect than those illustrated in the example codes.
The examples accompanying this List of Commands illustrate the use of the G'MIC language and are written as they would appear in a custom command. While some examples may work if entered directly at a shell prompt, there is no guarantee. No attempt has been made to escape special characters in these examples, which many shells reserve.

Categories:

• Global Options
• Input / Output
• List Manipulation
• Mathematical Operators
• Values Manipulation
• Colors
• Geometry Manipulation
• Filtering
• Features Extraction
• Image Drawing
• Matrix Computation
• 3D Meshes
• Flow Control
• Neural Networks
• Arrays, Tiles and Frames
• Artistic
• Warpings
• Degradations
• Blending and Fading
• Image Sequences and Videos
• Convenience Functions
• Other Interactive Commands
• Command Shortcuts

Global Options:

debug

help

version

Input / Output:

camera	command	compress_to_keypoints	cursor	delete
display	display0	display_array	display_camera	display_clut
display_fft	display_graph	display_histogram	display_parametric	display_polar
display_quiver	display_rgba	display_tensors	display_voxels3d	display_warp
echo	echo_file	font	font2gmz	function1d
identity	input	input_565	input_bytes	input_csv
input_cube	input_flo	input_glob	input_gpl	input_cached
input_normalized	input_obj	input_text	lorem	network
output	output_565	output_cube	output_flo	output_ggr
output_gmz	output_obj	output_text	outputn	outputp
outputw	outputx	parse_cli	parse_gmd	gmd2html
gmd2ascii	parse_gui	pass	plot	poincare_disk
portrait	print	random_pattern	screen	select
serialize	shape_circle	shape_cupid	shape_diamond	shape_dragon
shape_fern	shape_gear	shape_heart	shape_menger	shape_mosely
shape_polygon	shape_rays	shape_snowflake	shape_star	shared
sample	srand	store	testimage2d	uncommand
uniform_distribution	unserialize	update	verbose	wait
warn	window

List Manipulation:

keep	keep_named	move	name	remove
remove_duplicates	remove_empty	remove_named	reverse	sort_list

Mathematical Operators:

abs	abscut	acos	acosh	add
and	argmax	argmaxabs	argmin	argminabs
asin	asinh	atan	atan2	atanh
bsl	bsr	cos	cosh	cut
deg2rad	div	eq	erf	exp
ge	gt	inrange	isinf	isnan
le	lt	log	log10	log2
max	maxabs	mdiv	med	min
minabs	mod	mmul	mul	neq
oneminus	or	pow	rad2deg	rol
ror	sign	sin	sinc	sinh
softmax	softmin	sqr	sqrt	sub
tan	tanh	xor

Values Manipulation:

apply_curve	apply_gamma	balance_gamma	cast	complex2polar
compress_clut	compress_huffman	compress_rle	cumulate	decompress_clut
decompress_from_keypoints	decompress_huffman	decompress_rle	discard	eigen2tensor
endian	equalize	fill	index	map
mix_channels	negate	noise	noise_hurl	noise_perlin
noise_poissondisk	normp	norm1	norm2	normalize
normalize_l2	normalize_sum	orientation	otsu	polar2complex
quantize	quantize_area	rand	rand_sum	replace
replace_inf	replace_infnan	replace_nan	replace_seq	replace_str
round	roundify	set	threshold	vector2tensor

Colors:

adjust_colors	apply_channels	autoindex	bayer2rgb	clut
clut2hald	hald2clut	cmy2rgb	cmyk2rgb	colorblind
colormap	compose_channels	count_colors	deltaE	direction2rgb
ditheredbw	fill_color	gradient2rgb	hcy2rgb	hsi2rgb
hsi82rgb	hsl2rgb	hsl82rgb	hsv2rgb	hsv82rgb
int2rgb	ipremula	jzazbz2rgb	jzazbz2xyz	lab2lch
lab2rgb	lab2srgb	lab82srgb	lab2xyz	lab82rgb
lch2lab	lch2rgb	lch82rgb	luminance	lightness
lut_contrast	map_clut	match_histogram	match_icp	match_pca
match_rgb	mix_rgb	oklab2rgb	palette	premula
pseudogray	random_clut	random_clut	replace_color	retinex
rgb2bayer	rgb2cmy	rgb2cmyk	rgb2hcy	rgb2hsi
rgb2hsi8	rgb2hsl	rgb2hsl8	rgb2hsv	rgb2hsv8
rgb2int	rgb2jzazbz	rgb2lab	rgb2lab8	rgb2lch
rgb2lch8	rgb2luv	rgb2oklab	rgb2ryb	rgb2srgb
rgb2xyz	rgb2xyz8	rgb2yiq	rgb2yiq8	rgb2ycbcr
rgb2yuv	rgb2yuv8	remove_opacity	ryb2rgb	select_color
sepia	solarize	split_colors	split_opacity	split_vector
srgb2lab	srgb2lab8	srgb2rgb	to_a	to_color
to_colormode	to_gray	to_graya	to_pseudogray	to_rgb
to_rgba	to_automode	xyz2jzazbz	xyz2lab	xyz2rgb
xyz82rgb	ycbcr2rgb	yiq2rgb	yiq82rgb	yuv2rgb
yuv82rgb

Geometry Manipulation:

append	append_tiles	apply_scales	autocrop	autocrop_components
autocrop_coords	autocrop_seq	channels	columns	crop
elevate	expand	extract	extract_region	montage
mirror	permute	rescale2d	rescale3d	resize
resize_as_image	resize_displacement	resize_mn	resize_pow2	rotate
rotate_tileable	rows	scale2x	scale2x_cnn	scale3x
scale_dcci2x	seamcarve	shift	shrink	slices
sort	split	split_tiles	undistort	unroll
upscale_smart	volumetric2d

Filtering:

bandpass	bilateral	blur	blur_angular	blur_bloom
blur_linear	blur_radial	blur_selective	boxfilter	bump2normal
closing	closing_circ	convolve	convolve_fft	correlate
cross_correlation	curvature	dct	deblur	deblur_goldmeinel
deblur_richardsonlucy	deconvolve_fft	deinterlace	denoise	denoise_haar
denoise_cnn	denoise_patchpca	deriche	dilate	dilate_circ
dilate_oct	dilate_threshold	divergence	dog	diffusiontensors
erode	erode_circ	erode_oct	erode_threshold	fft
gradient	gradient_norm	gradient_orientation	guided	haar
heat_flow	hessian	idct	iee	ifft
ihaar	ilaplacian	inn	inpaint	inpaint_pde
inpaint_flow	inpaint_holes	inpaint_morpho	inpaint_matchpatch	kuwahara
laplacian	lic	map_tones	map_tones_fast	meancurvature_flow
median	merge_alpha	nlmeans	nlmeans_core	normalize_local
normalized_cross_correlation	opening	opening_circ	percentile	peronamalik_flow
phase_correlation	pde_flow	periodize_poisson	rbf	red_eye
remove_hotpixels	remove_pixels	rolling_guidance	sharpen	sharpen_alpha
smooth	split_freq	solve_poisson	split_alpha	split_details
structuretensors	solidify	syntexturize	syntexturize_matchpatch	tv_flow
unsharp	unsharp_octave	vanvliet	voronoi	watermark_fourier
watershed

Features Extraction:

area	area_fg	at_curve	at_quadrangle	barycenter
betti	canny	delaunay	detect_skin	displacement
distance	edgels	edges	fftpolar	histogram
histogram_masked	histogram_nd	histogram_cumul	histogram_pointwise	hough
huffman_tree	ifftpolar	img2patches	isophotes	label
label_fg	laar	max_patch	min_patch	minimal_path
mse	mse_matrix	patches2img	patches	matchpatch
matchpatch_alt	plot2value	pointcloud	psnr	psnr_matrix
segment_watershed	shape2bump	skeleton	slic	ssd_patch
ssim	ssim_matrix	thinning	tones	topographic_map
tsp	variance_patch

Image Drawing:

arrow	axes	ball	chessboard	cie1931
circle	close_binary	curve	ellipse	flood
gaussian	graph	grid	image	imagealpha
line	line_aa	spline	thickcircle	thickellipse
thickline	thickpolygon	thickspline	mandelbrot	marble
maze	maze_mask	newton_fractal	object3d	pack_sprites
piechart	plasma	point	polka_dots	polygon
quiver	rectangle	rorschach	sierpinski	spiralbw
tetraedron_shade	text	text_outline	triangle_shade	truchet
turbulence	yinyang

Matrix Computation:

diagonal	dijkstra	eigen	eye	fitsamples
invert	meigen	mproj	orthogonalize	poweriteration
solve	svd	transpose	trisolve

3D Meshes:

add3d	animate3d	apply_camera3d	apply_matrix3d	array3d
arrow3d	axes3d	boundingbox3d	box3d	center3d
chainring3d	circle3d	circles3d	color3d	colorcube3d
colorize3d	cone3d	cubes3d	cup3d	curve3d
cylinder3d	delaunay3d	distribution3d	div3d	double3d
elevation3d	empty3d	extract_textures3d	extrude3d	focale3d
fov3d	gaussians3d	gmic3d	gyroid3d	histogram3d
image6cube3d	imageblocks3d	imagecube3d	imageplane3d	imagepyramid3d
imagerubik3d	imagesphere3d	isoline3d	isosurface3d	label3d
label_points3d	lathe3d	light3d	line3d	lines3d
lissajous3d	mode3d	moded3d	mul3d	normalize3d
opacity3d	parametric3d	pca_patch3d	plane3d	point3d
pointcloud3d	pose3d	primitives3d	projections3d	pyramid3d
quadrangle3d	random3d	reverse3d	rotate3d	rotation3d
sierpinski3d	size3d	skeleton3d	snapshot3d	specl3d
specs3d	sphere3d	spherical3d	spline3d	split3d
sprite3d	sprites3d	star3d	streamline3d	sub3d
subdivide3d	superformula3d	surfels3d	tensors3d	text_pointcloud3d
text3d	texturize3d	torus3d	triangle3d	volume3d
voxelize3d	weird3d

Flow Control:

apply_parallel	apply_parallel_channels	apply_parallel_overlap	apply_tiles	apply_timeout
check	check3d	continue	break	do
done	elif	else	fi	error
eval	exec	exec_out	for	foreach
if	local	noarg	onfail	parallel
progress	quit	repeat	return	rprogress
run	skip	status	while

Neural Networks:

nn_lib	nn_add	nn_append	nn_avgpool2d	nn_avgpool3d
nn_check_layer	nn_clone	nn_conv2d	nn_conv2dnl	nn_conv2dnnl
nn_conv3d	nn_conv3dnl	nn_conv3dnnl	nn_crop	nn_distance
nn_div	nn_dropout	nn_fc	nn_fcnl	nn_fcnnl
nn_init	nn_input	nn_load	nn_loss_add	nn_loss_binary_crossentropy
nn_loss_crossentropy	nn_loss_mse	nn_loss_normp	nn_loss_softmax_crossentropy	nn_maxpool2d
nn_maxpool3d	nn_mul	nn_nl	nn_normalize	nn_patchdown2d
nn_patchdown3d	nn_patchup2d	nn_patchup3d	nn_print	nn_rename
nn_resconv2dnl	nn_resconv3dnl	nn_resfcnl	nn_reshape	nn_resize
nn_run	nn_save	nn_select	nn_size	nn_split
nn_store	nn_sub	nn_tconv2d	nn_tconv2dnl	nn_trainer

Arrays, Tiles and Frames:

array	array_fade	array_mirror	array_random	frame
frame_blur	frame_cube	frame_fuzzy	frame_painting	frame_pattern
frame_round	frame_seamless	img2ascii	imagegrid	imagegrid_hexagonal
imagegrid_triangular	map_sprites	pack	puzzle	rotate_tiles
shift_tiles	taquin	tunnel

Artistic:

boxfitting	brushify	cartoon	color_ellipses	cubism
draw_whirl	drop_shadow	drop_shadow	ellipsionism	fire_edges
fractalize	glow	halftone	hardsketchbw	hearts
houghsketchbw	lightrays	light_relief	linify	mosaic
old_photo	pencilbw	pixelsort	polaroid	polygonize
poster_edges	poster_hope	rodilius	sketchbw	sponge
stained_glass	stars	stencil	stencilbw	stylize
tetris	warhol	weave	whirls

Warpings:

deform	euclidean2polar	equirectangular2nadirzenith	fisheye	flower
kaleidoscope	map_sphere	nadirzenith2equirectangular	polar2euclidean	raindrops
ripple	rotoidoscope	spherize	symmetrize	transform_polar
twirl	warp	warp_patch	warp_perspective	warp_rbf
warp_seamless	water	wave	wind	zoom

Degradations:

cracks	light_patch	pixelize	scanlines	shade_stripes
shadow_patch	shuffle	spread	stripes_y	texturize_canvas
texturize_paper	vignette	watermark_visible

Blending and Fading:

blend	nblend	blend_edges	blend_fade	blend_median
blend_seamless	fade_diamond	fade_linear	fade_radial	fade_x
fade_y	fade_z	sub_alpha

Image Sequences and Videos:

animate	apply_camera	apply_files	apply_video	average_files
average_video	fade_files	fade_video	files2video	median_files
median_video	morph	morph_files	morph_rbf	morph_video
register_nonrigid	register_rigid	transition	transition3d	video2files

Convenience Functions:

add_copymark	alert	arg	arg0	arg2img
arg2var	average_vectors	base642img	base642uint8	basename
bin	bin2dec	cat	color2name	covariance_vectors
da_freeze	date	dec	dec2str	dec2bin
dec2hex	dec2oct	fibonacci	file_mv	filename
filename_rand	filename_dated	files	files2img	fitratio_wh
fitscreen	fontchart	fps	hex	hex2dec
hex2img	hex2str	img2base64	img2hex	img2str
img2text	is_mesh3d	is_change	is_half	is_ext
is_image_arg	is_pattern	is_videofilename	is_macos	is_windows
lof	math_lib	mad	max_w	max_h
max_d	max_s	max_wh	max_whd	max_whds
median_vectors	min_w	min_h	min_d	min_s
min_wh	min_whd	min_whds	name2color	named
narg	normalize_filename	oct	oct2dec	padint
path_cache	path_cached_file	path_current	path_gimp	path_tmp
remove_copymark	reset	rgb	rgba	shell_cols
size_value	std_noise	str	strbuffer	str2hex
strcapitalize	strcontains	strclut	strlen	strreplace
strlowercase	struppercase	strvar	strcasevar	strver
tic	time	toc	uint82base64

Other Interactive Commands:

demos	x_2048	x_blobs	x_bouncing	x_color_curves
x_colorize	x_connect4	x_crop	x_cut	x_fire
x_fireworks	x_fisheye	x_fourier	x_grab_color	x_hanoi
x_histogram	x_hough	x_jawbreaker	x_landscape	x_life
x_light	x_mandelbrot	x_mask_color	x_metaballs3d	x_minesweeper
x_minimal_path	x_morph	x_pacman	x_paint	x_plasma
x_quantize_rgb	x_reflection3d	x_rubber3d	x_segment	x_select_color
x_select_function1d	x_select_palette	x_shadebobs	x_spline	x_starfield3d
x_tetris	x_threshold	x_tictactoe	x_tixy	x_warp
x_waves	x_whirl

Command Shortcuts:

Shortcut name	Equivalent command name
h	help
m	command
d	display
d0	display0
da	display_array
dc	display_camera
dclut	display_clut
dfft	display_fft
dg	display_graph
dh	display_histogram
dq	display_quiver
drgba	display_rgba
dt	display_tensors
dv3d	display_voxels3d
dw	display_warp
e	echo
i	input
ib	input_bytes
ig	input_glob
in	input_normalized
it	input_text
o	output
ot	output_text
on	outputn
op	outputp
ow	outputw
ox	outputx
p	print
sh	shared
sp	sample
um	uncommand
up	update
v	verbose
w	window
k	keep
kn	keep_named
mv	move
nm	name
=>	name
rm	remove
rmn	remove_named
rv	reverse
+	add
&	and
<<	bsl
>>	bsr
c	cut
/	div
==	eq
>=	ge
>	gt
<=	le
<	lt
m/	mdiv
%	mod
m*	mmul
*	mul
!=	neq
|	or
^	pow
-	sub
f	fill
ir	inrange
norm	norm2
n	normalize
=	set
ac	apply_channels
fc	fill_color
a	append
z	crop
rs	rescale2d
rs3d	rescale3d
r	resize
ri	resize_as_image
s	split
y	unroll
b	blur
g	gradient
j	image
ja	imagealpha
j3d	object3d
t	text
to	text_outline
+3d	add3d
c3d	center3d
col3d	color3d
/3d	div3d
db3d	double3d
f3d	focale3d
l3d	light3d
m3d	mode3d
md3d	moded3d
*3d	mul3d
n3d	normalize3d
o3d	opacity3d
p3d	primitives3d
rv3d	reverse3d
r3d	rotate3d
sl3d	specl3d
ss3d	specs3d
s3d	split3d
-3d	sub3d
t3d	texturize3d
ap	apply_parallel
apc	apply_parallel_channels
apo	apply_parallel_overlap
at	apply_tiles
x	exec
xo	exec_out
l	local
q	quit
u	status
nmd	named
xz	x_crop