---
name: "chartread"
section: "1"
platform: "linux"
package: "argyll"
version: "3.3.0+repack-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/chartread"
---

# chartread(1)

Read Target Test Chart.

## NAME

Read - Read Target Test Chart.

## DESCRIPTION

Read Target Test Chart

## SYNOPSIS

**chartread** \[-options\] outfile

- **-v**

  Verbose mode

- **-c** listno

  Set communication port from the following list (default 1)

-

  \*\* No ports found \*\*

- **-t**

  Use transmission measurement mode

- **-d**

  Use display measurement mode (white Y relative results)

- **-e**

  Emissive for transparency on a light box

- **-p**

  Measure patch by patch rather than strip

- **-x** \[lx\]

  Take external values, either L\*a\*b\* (**-xl**) or XYZ (**-xx**).

- **-n**

  Don't save spectral information (default saves spectral)

- **-l**

  Save CIE as D50 L\*a\*b\* rather than XYZ

- **-L**

  Save CIE as D50 L\*a\*b\* as well as XYZ

- **-r**

  Resume reading partly read chart

- **-I** file.cal

  Override calibration info from .ti2 in resulting .ti3

- **-F** filter

  Set filter configuration (if aplicable):

- n

  None

- p

  Polarising filter

- 6

  D65

- u

  U.V. Cut

- **-N**

  Disable initial calibration of instrument if possible

- **-B**

  Disable auto bi-directional strip recognition

- **-H**

  Use high resolution spectrum mode (if available)

- **-X** file.ccmx

  Apply Colorimeter Correction Matrix

- **-X** file.ccss

  Use Colorimeter Calibration Spectral Samples for calibration

- **-Q** observ

  Choose CIE Observer for CCSS instrument: 1931\_2 (def), 1964\_10, S&B 1955\_2, shaw, J&V 1978\_2

- **-T** ratio

  Modify strip patch consistency tolerance by ratio

- **-S**

  Suppress wrong strip & unexpected value warnings

- **-W** n\|h\|x

  Override serial port flow control: n = none, h = HW, x = Xon/Xoff

- **-D** \[level\]

  Print debug diagnostics to stderr

- outfile

  Base name for input\[ti2\]/output\[ti3\] file