Differences

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--- doc:appunti:software:color_management [2019/12/24 11:35] – [Color spaces] niccolo
+++ doc:appunti:software:color_management [2022/08/08 14:30] (current) – [Other Interesting Pages] niccolo
@@ Line 39: / Line 39: @@
 To **convert** the stored **numerical values** back to **light intensity**, an **exponent** of **2.2** must be applied. Notice that a **linear color space** can be seen as a non-linear space where the exponent **gamma is 1.0**.
-So the **sRGG** (non linear) color space is widely used; that model is often called **perceptual gamma**. But if you work with high quality images (**16 bits per channel**) and if you want to **apply filters** that work on light and shadow, you should use a linear (RBG) workspace. The **GIMP 2.10** program internally uses linear channels data when higher than 8-bit per channel precision is used.
+So the **sRGB** (non linear) color space is widely used; that model is often called **perceptual gamma**. But if you work with high quality images (**16 bits per channel**) and if you want to **apply filters** that work on light and shadow, you should use a linear (RBG) workspace. The **GIMP 2.10** program internally uses linear channels data when higher than 8-bit per channel precision is used.
   * **[[https://www.kinematicsoup.com/news/2016/6/15/gamma-and-linear-space-what-they-are-how-they-differ|Gamma and Linear Space - What They Are and How They Differ]]**
@@ Line 79: / Line 79: @@
 **[[http://www.color.org/chardata/rgb/BT2020.xalter|ITU-R Recommendation BT.2020]]**. Defines various aspects of **ultra-high-definition television** (UHDTV). Can reproduce colors that cannot be shown with the Rec. 709 (HDTV) color. Defines linear RGB: 0.0 to 1.0 with a bit depth of either **10 bits** per sample or **12 bits** per sample. It covers the 75.8% of CIE 1931 color space.
 ==== Color profiles ====
+===== The GIMP =====
+The **GIMP** version **2.10** is required for **color management** and to handle **TIFF images** with **16 bit** per color channel.
+{{.:color_management:color-picker-cielab.png?120 |GIMP Color Picker with CIE LAB values}}
+To view **CIE LAB** values in **Color Picker**: select the Color Picker tool, then keep the **shift key** pressed while clicking over the image.
+===== Other Interesting Pages =====
+  * **[[colorchecker_clones]]**
+  * **[[imagemagick_color_management]]**
+  * **[[keldan_underwater_color_checker]]**