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@@ -780,9 +780,43 @@ Images
channel. Each channel has a sample depth in the range 1 to 16, which is the number of bits used by every sample in the
channel. Different channels may have different sample depths. The red, green, and blue samples determine the intensities of
- the red, green, and blue components of the pixel's color; if they are all zero, the pixel is black, and if they all have
+ the red, green, and blue components of the pixel's color.
+
+ The following table describes the quantization of image black to image peak white (signal range). By default the signal range is full-range
+ but it can also be represented as narrrow range, which conforms to quantization in broadcast video which typically uses the YCbCr Color
+ Representation. cICP can specify this specific range:
+
+
+
+
+ Full and Narrow Range Signal Range (Quantization Method)
+
+
+
+
+ | 16bit Signal Range (Quantization for Full and Narrow Ranges) |
+ Black |
+ White |
+
+
+
+
+ | Full Range |
+ 65535 |
+ 0 |
+
+
+
+ | Narrow Range |
+ 60160 |
+ 4096 |
+
+
+
+
+
- their maximum values (2sampledepth-1), the pixel is white. The alpha sample determines a pixel's degree of
+ The alpha sample determines a pixel's degree of
opacity, where zero means fully transparent and the maximum value means fully opaque. In a three-channel reference image
all pixels are fully opaque. (It is also possible for a four-channel reference image to have all pixels fully opaque; the
difference is that the latter has a specific alpha sample depth, whereas the former does not.) Each horizontal row of