diff --git a/common/cNet.cpp b/common/cNet.cpp
index 9c60770..88718a6 100644
--- a/common/cNet.cpp
+++ b/common/cNet.cpp
@@ -596,7 +596,7 @@ int cNet::GetOutputMemorySize(const int crop_w, const int crop_h, const int oute
 }
 
 // ネットワークを使って画像を再構築する
-Waifu2x::eWaifu2xError cNet::ReconstructImage(const bool UseTTA, const int crop_w, const int crop_h, const int outer_padding, const int batch_size, float *inputBlockBuf, float *outputBlockBuf, const cv::Mat &inMat, cv::Mat &outMat)
+Waifu2x::eWaifu2xError cNet::ReconstructImage(const bool UseTTA, const int crop_w, const int crop_h, const int outer_padding, const int batch_size, float *outputBlockBuf, const cv::Mat &inMat, cv::Mat &outMat)
 {
 	const auto InputHeight = inMat.size().height;
 	const auto InputWidth = inMat.size().width;
@@ -672,7 +672,7 @@ Waifu2x::eWaifu2xError cNet::ReconstructImage(const bool UseTTA, const int crop_
 
 				// 画像を直列に変換
 				{
-					float *fptr = inputBlockBuf + (input_block_plane_size * n);
+					float *fptr = input_blob->mutable_cpu_data() + (input_block_plane_size * n);
 					const float *uptr = (const float *)someimg.data;
 
 					const auto Line = someimg.step1();
@@ -712,9 +712,6 @@ Waifu2x::eWaifu2xError cNet::ReconstructImage(const bool UseTTA, const int crop_
 
 			assert(input_blob->count() == input_block_plane_size * processNum);
 
-			// ネットワークに画像を入力
-			input_blob->set_cpu_data(inputBlockBuf);
-
 			// 計算
 			auto out = mNet->Forward();
 
diff --git a/common/cNet.h b/common/cNet.h
index 1d6522f..cbd8ff1 100644
--- a/common/cNet.h
+++ b/common/cNet.h
@@ -57,7 +57,7 @@ public:
 	int GetInputMemorySize(const int crop_w, const int crop_h, const int outer_padding, const int batch_size) const;
 	int GetOutputMemorySize(const int crop_w, const int crop_h, const int outer_padding, const int batch_size) const;
 
-	Waifu2x::eWaifu2xError ReconstructImage(const bool UseTTA, const int crop_w, const int crop_h, const int outer_padding, const int batch_size, float *inputBlockBuf, float *outputBlockBuf, const cv::Mat &inMat, cv::Mat &outMat);
+	Waifu2x::eWaifu2xError ReconstructImage(const bool UseTTA, const int crop_w, const int crop_h, const int outer_padding, const int batch_size, float *outputBlockBuf, const cv::Mat &inMat, cv::Mat &outMat);
 
 	static std::string GetModelName(const boost::filesystem::path &info_path);
 };
diff --git a/common/waifu2x.cpp b/common/waifu2x.cpp
index eaaab21..7742ab6 100644
--- a/common/waifu2x.cpp
+++ b/common/waifu2x.cpp
@@ -249,7 +249,7 @@ void Waifu2x::quit_liblary()
 {}
 
 
-Waifu2x::Waifu2x() : mIsInited(false), mNoiseLevel(0), mIsCuda(false), mInputBlock(nullptr), mInputBlockSize(0), mOutputBlock(nullptr), mOutputBlockSize(0)
+Waifu2x::Waifu2x() : mIsInited(false), mNoiseLevel(0), mIsCuda(false), mOutputBlock(nullptr), mOutputBlockSize(0)
 {}
 
 Waifu2x::~Waifu2x()
@@ -669,19 +669,6 @@ Waifu2x::eWaifu2xError Waifu2x::ProcessNet(std::shared_ptr<cNet> net, const int
 {
 	Waifu2x::eWaifu2xError ret;
 
-	const auto InputMemorySize = net->GetInputMemorySize(crop_w, crop_h, OuterPadding, batch_size);
-	if (InputMemorySize > mInputBlockSize)
-	{
-		if (mIsCuda)
-			CUDA_HOST_SAFE_FREE(mInputBlock);
-		else
-			SAFE_DELETE_WAIFU2X(mInputBlock);
-
-		CUDA_CHECK_WAIFU2X(cudaHostAlloc(&mInputBlock, InputMemorySize, cudaHostAllocWriteCombined));
-
-		mInputBlockSize = InputMemorySize;
-	}
-
 	const auto OutputMemorySize = net->GetOutputMemorySize(crop_w, crop_h, OuterPadding, batch_size);
 	if (OutputMemorySize > mOutputBlockSize)
 	{
@@ -692,10 +679,10 @@ Waifu2x::eWaifu2xError Waifu2x::ProcessNet(std::shared_ptr<cNet> net, const int
 
 		CUDA_CHECK_WAIFU2X(cudaHostAlloc(&mOutputBlock, OutputMemorySize, cudaHostAllocDefault));
 
-		mInputBlockSize = OutputMemorySize;
+		mOutputBlockSize = OutputMemorySize;
 	}
 
-	ret = net->ReconstructImage(use_tta, crop_w, crop_h, OuterPadding, batch_size, mInputBlock, mOutputBlock, im, im);
+	ret = net->ReconstructImage(use_tta, crop_w, crop_h, OuterPadding, batch_size, mOutputBlock, im, im);
 	if (ret != Waifu2x::eWaifu2xError_OK)
 		return ret;
 
@@ -720,12 +707,10 @@ void Waifu2x::Destroy()
 
 	if (mIsCuda)
 	{
-		CUDA_HOST_SAFE_FREE(mInputBlock);
 		CUDA_HOST_SAFE_FREE(mOutputBlock);
 	}
 	else
 	{
-		SAFE_DELETE_WAIFU2X(mInputBlock);
 		SAFE_DELETE_WAIFU2X(mOutputBlock);
 	}
 
diff --git a/common/waifu2x.h b/common/waifu2x.h
index 6f868e2..181a177 100644
--- a/common/waifu2x.h
+++ b/common/waifu2x.h
@@ -89,9 +89,6 @@ private:
 	int mMaxNetOffset; // ネットに入力するとどれくらい削れるか
 	bool mHasNoiseScale;
 
-	float *mInputBlock;
-	size_t mInputBlockSize;
-
 	float *mOutputBlock;
 	size_t mOutputBlockSize;