Camera Colorimeter

Auralisoft

About this app

Camera Colorimeter uses a back-facing camera as a colorimeter to color calibrate a Windows device running

Display Calibration
https://www.microsoft.com/en-us/store/apps/display-calibration/9nblggh4wd9s

Communication between Camera Colorimeter and the external device is via Bluetooth.

FEATURES

- Produces an ICC profile which can then be installed on the PC
- Uses RAW_SENSOR data on capable phones for most accurate color metering
- Option for calibrating your camera by capturing a reference D65 white point and primary RGB colors


REQUIREMENTS

- Android 5.0 (Lollipop) or higher
- Bluetooth
- A good quality back-facing camera with DAYLIGHT (D65) white balance and manual exposure controls

**A camera device that supports RAW_SENSOR image capture is highly recommended**

OPTIONAL REFERENCE WHITE

The accuracy of color readings made by Camera Colorimeter can be improved if it is provided with a reference D65 light source. This is done by placing the back-facing camera over the D65 light source and select "Capture white point" from the menu. See below for how to use sunlight as an approximate reference D65 light source.

Accuracy can best be improved by providing reference sRGB white (D65), red, green and blue primaries. These must be obtained from the same source, at the same brightness settings.


INSTRUCTIONS

Instructions for color calibrating a Windows device is given within the Display Calibration app itself.

It is important that the Camera Colorimeter app must remain active in the foreground. Do not put the device to sleep or start another app otherwise the calibration process will need to be repeated.

Calibration takes about 5 - 10 mins so be sure that both devices have sufficient battery capacity to complete the operation.


BLUETOOTH PAIRING

It is essential to have this Camera Colorimeter app running when pairing your phone with your PC. If you have already paired your devices then please delete and re-create the pairing after running the Camera Colorimeter app.

WINDOWS CONNECTION PERMISSION

Upon connecting this Camera Colorimeter app on your phone and our Display Calibration app on your PC for the first time, Windows will present a dialog box asking for permission to connect the two devices/apps. Please click "Yes".

If you don't see this dialog box and your devices fail to connect, please uninstall and re-install the Display Calibration app on your PC.

LIMITATION

This app calibrates your display to the standard sRGB color space. Wide color spaces are currently not supported.

Due to the limitation of the ICC profiles used by Windows, some displays can not be adequately calibrated. These are typically displays whose colors have been highly tweaked by the manufacturer.

It is essential to adjust the color settings on your display to Standard, sRGB, or 6500K prior to calibration. Please do not select tweaked color settings such as Gaming, Cinema, etc...


APPROXIMATE REFERENCE D65 LIGHT SOURCE

Sunlight at mid-day on a sunny day can be used as an approx. D65 light source, as follows:

- Tape a white piece of paper over the camera lens of device A
- Ensure that the piece of paper is in direct sunlight, but do not point the camera directly at the sun
- Select "Capture white point" from the menu.
- Uncover the camera lens

FACEBOOK

Please share your experience on our facebook page

https://www.facebook.com/cameracolorimeter

Ratings and reviews

I had a lot of frustration with Bluetooth disconnections between my Pixel 6 Pro and Windows 10 desktop. Then I tried swapping USB Bluetooth adapters (from BT4 to BT2.0) which worked. However, that might be a red herring, as other reviews here state all that is necessary is to instigate the pairing from PC (not the phone), with the app active/open on the phone. Perhaps I did that unwittingly! Anyway, having sorted it out, the app is a joy to use, it gives great results.

Calibration costs $2 (for the desktop app), which isn't mentioned in this app. Granted, that's still much cheaper than a dedicated calibration tool. Was a bit skeptical, but the app itself worked for me first try, and gave me a very good result, with more natural colors (though the app itself feels rough around the edges UI wise). The hardest part was just getting the phone taped securely to the monitor.

Good and accurate low cost alternative to a low end calibration system that can cost $100 . With the companion Windows app it was able to create good gamma curves for my display. The results are reproducible each time. The builtin white capture function seems accurate but creates a very reddish/yellow result by default. You can just capture the white point of any other display instead and it will reproduce that white point in your calibration. The result was good and pleasant.

What's new

Fixed crash