Spectral Library
Browse the spectral library to find spectra for your projects.
| Name | Group | Source | Type |
|---|
| COLOR | SPECTRUM | XYZ | xy | La*b* | RGB (8 bits) |
|---|---|---|---|---|---|
| No spectra selected | |||||
Spectrum Crafter
Create spectra with various methods and add them to the library.
New spectra are tagged as user generated and grouped together in the library.
| COLOR | SPECTRUM | XYZ | xy | La*b* | RGB (8 bits) |
|---|---|---|---|---|---|
| No spectrum generated | |||||
Light Source Color Rendition
Select illuminants from the database to compute color rendition metrics.
| Name | Group | Source | CCT (K) | Duv | Spectroscope |
|---|
Select illuminants to compute color rendition metrics.
Material Color Rendition
Select groups of reflectance spectra to view their colors under different illuminants.
| Group Name | Source | Count |
|---|
Select groups of reflectance spectra to view their colors.
| COLOR | SPECTRUM | XYZ | xy | La*b* | RGB (8 bits) |
|---|---|---|---|---|---|
| Select groups of reflectance spectra to view their color values. | |||||
Display Gamut
Select a display to view its color gamut on the CIE chromaticity diagram.
| Display Name | Source | Manufacturer | Red (xy) | Green (xy) | Blue (xy) | White (xy) |
|---|
Select a display to view its spectrum.
Sensor Sensitivity
Select a sensor to compute its RAW RGB to XYZ camera matrix. The underlying method is based on Physlight which minimizes the difference between the camera XYZ (using the matrix) and the reference XYZ (using the 1931 observer) for a set of spectral colors (from rawtoaces dataset). As an improvement, here, we minimize the color difference (delta E) between the Lab values of the camera XYZ and the Lab values of the reference XYZ with a non-linear optimization using the matrix from the previous step as an initial guess. The solver takes a bit of time so be patient.
| Sensor Name | Source | Manufacturer |
|---|
Select a sensor to view its data.
RGB Camera to XYZ Matrix
Color difference (D65 illuminant, sRGB D65 color space, ΔE 2000)
Left is camera, right is 1931 2° observer. ΔE larger than 2 is highlighted in red.
Spectral Image & Reflectance Texture
Load and display spectral images in OpenEXR and ENVI format. Click on the image to view the spectrum at the cursor position. Double click to remove. Drag to move.
Press 'e' to increase, Shift+'e' to decrease (0.1 steps)
| COLOR | SPECTRUM | XYZ | xy | La*b* | RGB (8 bits) |
|---|---|---|---|---|---|
| Click on the image to add pixel points | |||||
