ConstantImage [val,size]
gives an image of the specified size with constant pixel values of val.
ConstantImage [val,size,"type"]
gives an image converted to the specified type.
ConstantImage
ConstantImage [val,size]
gives an image of the specified size with constant pixel values of val.
ConstantImage [val,size,"type"]
gives an image converted to the specified type.
Details and Options
- ConstantImage by default chooses a color space compatible with the given value specification val.
- Constant value val can be any of the following:
-
v gray level from 0 to 1{c1,c2,…} different channel values cicolor any color directive
- Size specification size can be one of the following:
-
side 2D image of size {side,side}{width,height} 2D image size specification{width,depth,height} 3D image size specification
- ConstantImage [val] is equivalent to ConstantImage [val,{150,150}]. »
- The default "type" is taken to be "Real32".
- ConstantImage supports all Image and Image3D options.
Examples
open all close allBasic Examples (3)
Create a constant gray image:
Create a constant color image:
Create a constant 3D image:
Scope (4)
Create a constant Lab image:
Create a constant image with an arbitrary number of channels:
If no output image size is specified, a image is returned:
By default, an image of a real type is generated:
Specify the output image type:
Applications (1)
Create a constant black image to construct a marker image:
Replace marker points with white and use for processing:
Properties & Relations (1)
Construct a constant image using ConstantArray :
Related Guides
Text
Wolfram Research (2014), ConstantImage, Wolfram Language function, https://reference.wolfram.com/language/ref/ConstantImage.html (updated 2019).
CMS
Wolfram Language. 2014. "ConstantImage." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2019. https://reference.wolfram.com/language/ref/ConstantImage.html.
APA
Wolfram Language. (2014). ConstantImage. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/ConstantImage.html
BibTeX
@misc{reference.wolfram_2025_constantimage, author="Wolfram Research", title="{ConstantImage}", year="2019", howpublished="\url{https://reference.wolfram.com/language/ref/ConstantImage.html}", note=[Accessed: 17-November-2025]}
BibLaTeX
@online{reference.wolfram_2025_constantimage, organization={Wolfram Research}, title={ConstantImage}, year={2019}, url={https://reference.wolfram.com/language/ref/ConstantImage.html}, note=[Accessed: 17-November-2025]}