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iccwrite

Write ICC color profile data

Syntax

outProfile = iccwrite(inProfile,filename)

Description

example

outProfile = iccwrite(inProfile,filename) writes an International Color Consortium (ICC) profile data in structure inProfile to the file specified by filename.

You can use this function to modify fields in an ICC profile data structure and write it to a file with name filename. For example, some applications use the string field in profile description to present choices to users. The ICC recommends modifying the profile description in ICC profile data before writing the data to a file. Each profile is recommended to have a unique profile description. You can therefore, use the iccwrite function to modify the profile description.

Note

iccwrite can write profiles that conform with either Version 2 (ICC.1:2001-04) or Version 4 (ICC.1:2001-12) of the ICC specification. To determine the version of the ICC specification, use version field in the Header of profile data structure. Based on the version, format the inProfile for output. For more information about ICC profiles, visit the ICC website, www.color.org.

Examples

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Read an ICC profile data into the workspace and display the profile name.

inProfile = iccread('monitor.icm');
inProfile.Description.String
ans = 
'sgC4_050102_d50.pf'

Change the profile name to 'monitor_RGB'.

inProfile.Description.String = 'monitor_RGB';

Write the updated ICC profile data to a new file and display the corresponding output ICC profile data. The new file is created in the current working folder.

outProfile = iccwrite(inProfile,'monitorcolor.icm')
outProfile = struct with fields:
             Header: [1×1 struct]
           TagTable: {11×3 cell}
        Description: [1×1 struct]
    MediaWhitePoint: [0.9642 1.0000 0.8249]
          Copyright: 'Copyright  Sequel Imaging Inc. 1996-2001'
    MediaBlackPoint: [0 0 0]
             MatTRC: [1×1 struct]
        PrivateTags: {'vcgt'  [1×786 uint8]}
           Filename: 'monitorcolor.icm'

Verify the modified description in output ICC profile data.

outProfile.Description.String
ans = 
'monitor_RGB'

Input Arguments

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Input ICC profile data, specified as a structure array represents an ICC profile in the data format returned by iccread. The ICC profile data must contain all the tags and fields required by the ICC profile specification. The input ICC profile data is written to filename.

Data Types: struct

Name of the file to write ICC profile data, specified as a character vector or string scalar. Depending on the operating system, you can save the file with an extension .icc or .icm.

Note

If you specify only the file name without its path, iccwrite writes the file to current working folder.

Data Types: char | string

Output Arguments

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Output ICC profile data, returned as a structure array gives the ICC profile data written to the file filename.

Data Types: struct

Tips

iccwrite does not perform automatic conversions from one version of the ICC specification to another. Do the conversion manually by adding fields or modifying fields in ICC profile data. Use isicc to validate the converted ICC profile data.

Introduced before R2006a