imagesc

Display image from array with scaled colors.

Syntax

• imagesc()

• imagesc(C)

• image(X, Y, C)

• imagesc('CData', C)

• imagesc('XData', X, 'YData', Y,'CData', C)

• imagesc(..., propertyName, propertyValue)

• imagesc(parent, ...)

• go = imagesc(...)

Input argument

• X - x-coordinates: vector or matrix.

• Y - y-coordinates: vector or matrix.

• C - Color array: m-by-n-by-3 array of RGB triplets.

• parent - a scalar graphics object value: parent container, specified as a axes.

• propertyName - a scalar string or row vector character.

• propertyValue - a value.

Output argument

• go - a graphics object: image type.

Description

imagessc displays C data as an image. This image is colormapped using the colormap for the current figure.

Properties:

AlphaData Transparency data: scalar, array the same size as CData, or 1 (default).

AlphaDataMapping

CData Image color data: vector or matrix, 3-D array of RGB triplets.

CDataMapping Color data mapping method: 'direct' or 'scaled' (default).

Children [].

Parent Parent: axes object.

Tag Object identifier: string scalar, character vector, '' (default).

Type Type of graphics object: 'surface'.

UserData: User data: array or [] (default).

Visible State of visibility: 'off' or 'on' (default).

XData Placement along x-axis: two-element vector, scalar, [1 size(CData, 1)] (default).

YData Placement along y-axis: two-element vector, scalar, [1 size(CData, 2)] (default).

Examples

f1 = figure();
C = [0 2 4 6; 8 10 12 14; 16 18 20 22];
imagesc(C)

f2 = figure();
C = [0 2 4 6; 8 10 12 14; 16 18 20 22];
imagesc(C)
colormap(gray)

See also

image, colormap.

History

Version	Description
1.0.0	initial version

Author

Allan CORNET