GR_PLOTS

GR_PLOTS is a software aimed at visual artists and color enthusiasts alike with an interest or need for image data visualisation.

It has several tools and modes to help you navigate though the image using different plotting methods.

Here is a list of the features included in this released version:

MacOS apple silicon compatible.
Use of GPU for rendering.
Easy to use menu and navigation controls.
Dockable GUI menu based on ImGui.
Based on Open Frameworks C++ toolkit
2D and 3D visualisation.
Raw data visualisation (no color management)
Sampler / Magnifier tool.
Custom target tool.
Min/Max RGB and PIXEL target.
Save screen-capture functionality.
Test images included for visualisation.
Source code available.
Only Vectorscope plotting mode is available in this first release.
Only images are supported in this release.

Display controls

YCbCr matrix transform for:
- Rec-601
- Rec-709
- Rec-2020 (Experimental)
Souce image display
HUD display
Targets display
Stats display
- Min/Max R-G-B values display

Plot controls

SOURCE IMAGE

Sampling precision
Source crop
Source display scale

PIXEL

Pixel color from source / user
Pixel value Threshold
Pixel dilate
alpha and gain

TRANSFORM

2d and 3d rotation
Plot padding

HUD controls

GRATICULE

Graticule color and gain
IQ color and gain
Custom Line with controls

TARGETS

Color from primaries
Gain
Target Size and distance from center
Min/Max target draw with controls
Csutom target draw with controls

Sampler tool

SAMPLER / MAGNIFIER

Sample targeted pixel and display RGB values as 8bit data
Sample distance from center and display in %
Use as sample to draw custom target from source image display

3D navigation

3D NAVIGATION

Press Return/Enter key to navigate from 2d. to 3d mode
Press “o“ key to change from orthographic to perspective projection
Click and drag to rotate and move in 3D scene
All vectorscope 2d controls available plus some extra features like colorspace
Sampler tool not available in 3D mode (for now)

Extra features

GUI

Dockable space and tab reordering
Press the “?“ key for the Help window

DRAG AND DROP IMAGES

Drag and drop image files to the app to plot
Press the keys:
- 1 : LUT cube
- 2 : Color bars with luma ramps
- 3: Macbeth color patches
- 0 : Last user loaded image

SCREENCAPTURE

Press the “P“ key to save a screencapture

Here you can find, the Source Code used to create the app as well as links to download precompiled Apple Silicon and Rosetta emulation releases. (Minimum OS target 11.5)

<< It is very likely that you’ll need to activate the functionality in your mac to open apps from “Anywhere“ inn order to run it >>

If you find any bugs, or if you have any recommendations or if just you are curious about how I build it, don’t hesitate to get in contact with me :)

Please note that this software has been released under MIT License.

Source code

APPLE SILICON

APPLE ROSETTA