diff --git a/openbr/plugins/cuda/cudapca.cpp b/openbr/plugins/cuda/cudapca.cpp
index 9341c24..f74de2f 100644
--- a/openbr/plugins/cuda/cudapca.cpp
+++ b/openbr/plugins/cuda/cudapca.cpp
@@ -34,7 +34,7 @@ using namespace cv;
 namespace br { namespace cuda { namespace pca {
   void initializeWrapper(float* evPtr, int evRows, int evCols, float* meanPtr, int meanElems);
   void trainWrapper(void* cudaSrc, float* dst, int rows, int cols);
-  void wrapper(void* src, void** dst);
+  void wrapper(void* src, void** dst, int imgRows, int imgCols);
 }}}
 
 namespace br
@@ -136,7 +136,7 @@ private:
       dstDataPtr[2] = srcDataPtr[2];  *((int*)dstDataPtr[2]) = keep;
       dstDataPtr[3] = srcDataPtr[3];
 
-      cuda::pca::wrapper(srcDataPtr[0], &dstDataPtr[0]);
+      cuda::pca::wrapper(srcDataPtr[0], &dstDataPtr[0], rows, cols);
 
       dst = dstMat;
     }
@@ -150,7 +150,6 @@ private:
     {
         stream >> keep >> drop >> whiten >> originalRows >> mean >> eVals >> eVecs;
 
-        // TODO(colin): use Eigen Map class to generate map files so we don't have to copy the data
         // serialize the eigenvectors
         float* evBuffer = new float[eVecs.rows() * eVecs.cols()];
         for (int i=0; i < eVecs.rows(); i++) {
diff --git a/openbr/plugins/cuda/cudapca.cu b/openbr/plugins/cuda/cudapca.cu
index 1a2861f..05c34d6 100644
--- a/openbr/plugins/cuda/cudapca.cu
+++ b/openbr/plugins/cuda/cudapca.cu
@@ -116,10 +116,15 @@ namespace br { namespace cuda { namespace pca {
     CUDA_SAFE_MEMCPY(data, cudaSrc, rows*cols*sizeof(float), cudaMemcpyDeviceToHost, &err);
   }
 
-  void wrapper(void* src, void** dst) {
+  void wrapper(void* src, void** dst, int imgRows, int imgCols) {
     cudaError_t err;
     CUDA_SAFE_MALLOC(dst, _evCols*sizeof(float), &err);
 
+    if (imgRows*imgCols != _evRows) {
+      cout << "ERR: Image dimension mismatch!" << endl;
+      throw 0;
+    }
+
     // subtract out the mean of the image (mean is 1xpixels in size)
     int threadsPerBlock = 64;
     int numBlocks = _meanElems / threadsPerBlock + 1;