ferdikoomen / capture3

C++ research project to learn more about cameras, image processing, color spaces, OpenCV and multi‑threading.

Capture3

Capture3 is a C++ desktop application that can capture and process photos through a tethered connection with a digital camera. It started out as a research project to learn more about digital cameras, image processing, color spaces, C++, OpenCV and multi-threading. The main features are:

1. Tethered capturing: Automatically capture multiple photos with different exposure values and focus planes, without touching the camera.
2. Automatic color calibration: This works by detecting a X-Rite ColorChecker Digital SG target in a photo, then automatically detecting each of the 140 colored patches and calculating a white point and color matrix from these values.
3. Exposure merging: Merge photos with different exposure brackets to create a HDR image.
4. Focus merging: Merge photos with different focal planes through a technique called focus stacking to create one result image with a higher DOF (Depth Of Field).
5. Color space visualizer: Preview images in RGB, HSB, XYZ and LAB color spaces, including 3D color space graphs.

Capture3 is developed using JetBrains CLion and can be built on a Mac with macOS Sierra or higher. Although it could support other camera's, it's only tested using a Nikon D3300 and Sigma 35mm f/1.4 DG HSM Art lens.

Learn more

• Qt5 → Application framework used to create the GUI
• OpenCV → Image processing library
• OpenMP → Amazing multi-threading library
• Imatest → Great resource on color targets and color matrix calculations
• Bruce Lindbloom → Great resource color space math
• Oscar de Lama → Great resource on RAW processing

Screenshots

Requirements

• Qt 5.9
• NodeJS v8.5

Libraries

• autoconf 2.69
• automake 1.15
• gcc 4.9.4
• gcc 6.3.0
• gettext 0.19.8.1
• libiconv 1.14
• libtool 2.4.6
• mpc 1.0.3
• readline v6.3
• sed 4.2.2
• isl 0.12.2
• isl 0.16.1
• eigen 3.3.1
• tiff 4.0.7
• boost 1.63.0
• freeimage 3.17.0
• freetype 2.7.1
• gphoto2 2.5.11
• libgphoto2 2.5.11
• lcms2 2.8
• libexif 0.6.21
• libpng 1.6.27
• libusb 1.0.21
• libusb-compat 0.1.5
• pcre 8.39
• ffmpeg 3.2.2
• glfw 3.2.1
• libffi 3.2.1
• libgd 2.1.1
• opencv 3.2.0
• opencv_contrib 3.2.0
• gmp 6.1.2
• popt 1.16
• cloog 0.18.4
• cairo 1.14.8
• pixman 0.34.0
• fontconfig 2.12.1
• pkg-config 0.29.1
• jpeg 9b
• libraw 0.18.0
• libraw-demosaic-pack-GPL2 0.18.0
• libraw-demosaic-pack-GPL3 0.18.0
• mpfr 3.1.5
• nasm 2.12.02
• openssl 1.1.0c

Install

We use Yarn package manager to manage our dependencies.

curl -o- -L https://yarnpkg.com/install.sh | bash
yarn install

Run

./debug.sh

Release

./release.sh