From 1d67bf0539a701882c32515f10939aefebc60789 Mon Sep 17 00:00:00 2001 From: Andrew Murray Date: Sat, 4 May 2019 16:11:16 +1000 Subject: [PATCH] Document pixel range [ci skip] --- docs/handbook/concepts.rst | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/docs/handbook/concepts.rst b/docs/handbook/concepts.rst index b2611c11b53..055821a15cf 100644 --- a/docs/handbook/concepts.rst +++ b/docs/handbook/concepts.rst @@ -24,8 +24,10 @@ To get the number and names of bands in an image, use the Modes ----- -The ``mode`` of an image defines the type and depth of a pixel in the -image. The current release supports the following standard modes: +The ``mode`` of an image defines the type and depth of a pixel in the image. +Each pixel uses the full range of the bit depth. So a 1-bit pixel has a range +of 0-1, an 8-bit pixel has a range of 0-255 and so on. The current release +supports the following standard modes: * ``1`` (1-bit pixels, black and white, stored with one pixel per byte) * ``L`` (8-bit pixels, black and white)