diff --git a/include/libcamera/internal/software_isp/debayer_geometry.h b/include/libcamera/internal/software_isp/debayer_geometry.h
index 70ae6a8b..46721753 100644
--- a/include/libcamera/internal/software_isp/debayer_geometry.h
+++ b/include/libcamera/internal/software_isp/debayer_geometry.h
@@ -40,4 +40,12 @@ inline std::array<float, 16> debayerProjection(const Size &inputSize,
 	/* clang-format on */
 }
 
+/* Return the visible sensor rectangle, before statistics Bayer alignment. */
+inline Rectangle debayerCrop(const Size &inputSize, const Size &nativeSize,
+			     const Size &outputSize)
+{
+	const Size visibleSize = nativeSize.boundedToAspectRatio(outputSize);
+	return visibleSize.centeredTo(Rectangle(inputSize).center());
+}
+
 } /* namespace libcamera */
diff --git a/src/libcamera/software_isp/debayer_egl.cpp b/src/libcamera/software_isp/debayer_egl.cpp
index 1a7ad25c..9f3dc752 100644
--- a/src/libcamera/software_isp/debayer_egl.cpp
+++ b/src/libcamera/software_isp/debayer_egl.cpp
@@ -323,18 +323,11 @@ int DebayerEGL::configure(const StreamConfiguration &inputCfg,
 	outputSize_ = outputCfg.size;
 	nativeOutputSize_ = outSizeRange.max;
 
-	window_.x = ((inputCfg.size.width - outputCfg.size.width) / 2) &
-		    ~(inputConfig_.patternSize.width - 1);
-	window_.y = ((inputCfg.size.height - outputCfg.size.height) / 2) &
-		    ~(inputConfig_.patternSize.height - 1);
-	window_.width = outputCfg.size.width;
-	window_.height = outputCfg.size.height;
-
 	/*
-	 * Don't pass x,y from window_ since process() already adjusts for it.
-	 * But crop the window to 2/3 of its width and height for speedup.
+	 * The GPU scales the visible sensor crop to outputSize_. Statistics
+	 * consume the original input buffer, so use sensor coordinates here.
 	 */
-	stats_->setWindow(Rectangle(window_.size()));
+	stats_->setWindow(debayerCrop(inputCfg.size, nativeOutputSize_, outputSize_));
 
 	inputBufferCount_ = inputCfg.bufferCount;
 	outputBufferCount_ = outputCfg.bufferCount;
diff --git a/src/libcamera/software_isp/debayer_egl.h b/src/libcamera/software_isp/debayer_egl.h
index 30e51a47..52b8aa07 100644
--- a/src/libcamera/software_isp/debayer_egl.h
+++ b/src/libcamera/software_isp/debayer_egl.h
@@ -111,7 +111,6 @@ private:
 	GLint contrastExpUniformDataIn_;
 
 	Size nativeOutputSize_;
-	Rectangle window_;
 	std::unique_ptr<SwStatsCpu> stats_;
 	eGL egl_;
 	uint32_t width_;