diff --git a/include/libcamera/internal/software_isp/debayer_params.h b/include/libcamera/internal/software_isp/debayer_params.h
index 6772b43bc..3f25d3219 100644
--- a/include/libcamera/internal/software_isp/debayer_params.h
+++ b/include/libcamera/internal/software_isp/debayer_params.h
@@ -10,6 +10,7 @@
 
 #pragma once
 
+#include <array>
 #include <stdint.h>
 
 #include "libcamera/internal/matrix.h"
@@ -25,6 +26,10 @@ struct DebayerParams {
 	float gamma = 1.0;
 	float contrastExp = 1.0;
 	RGB<float> gains = RGB<float>({ 1.0, 1.0, 1.0 });
+
+	static constexpr unsigned int kLscGridSize = 16;
+	using LscLookupTable = std::array<uint8_t, 3 * kLscGridSize * kLscGridSize>;
+	LscLookupTable lscLut{};
 };
 
 } /* namespace libcamera */
diff --git a/src/libcamera/software_isp/debayer.cpp b/src/libcamera/software_isp/debayer.cpp
index a6bceb58b..b60ebcd9b 100644
--- a/src/libcamera/software_isp/debayer.cpp
+++ b/src/libcamera/software_isp/debayer.cpp
@@ -49,6 +49,24 @@ namespace libcamera {
  * \brief Contrast value to be used as an exponent
  */
 
+/**
+ * \var DebayerParams::kLscGridSize
+ * \brief Number of lens shading grid areas in one direction
+ */
+
+/**
+ * \typedef DebayerParams::LscLookupTable
+ * \brief Lookup table for lens shading correction
+ *
+ * It's an array of bytes to be later used as a texture.
+ * The bytes are in row - column - RGB order.
+ */
+
+/**
+ * \var DebayerParams::lscLut
+ * \brief Lens shading lookup table
+ */
+
 /**
  * \class Debayer
  * \brief Base debayering class