diff --git a/src/operator/Resize.cpp b/src/operator/Resize.cpp
index 7a85588f558b98384d5054b19eeb08dd08a32ea7..8ab6669d198b62886f3126b1b7e01259867b6794 100644
--- a/src/operator/Resize.cpp
+++ b/src/operator/Resize.cpp
@@ -23,34 +23,35 @@
 #include "aidge/utils/ErrorHandling.hpp"
 #include "aidge/utils/Types.h"
 
-
 const std::string Aidge::Resize_Op::Type = "Resize";
 
 bool Aidge::Resize_Op::forwardDims(bool /*allowDataDependency*/) {
 
     AIDGE_ASSERT(getInput(0)->nbDims() ==  4,\
-             "input tensor must have dimentions = 4 .");
+             "input tensor must have dimensions = 4 (batch, channel, height, width).");
 
-    // check input ("data_input","roi", "scales", "data_input","sizes") has been associated
     for (size_t i = 0; i < 4; ++i) {
+        // check inputs ("data_input","roi", "scales", "data_input","sizes") has been associated
         if (!getInput(i)) {
             AIDGE_THROW_OR_ABORT(std::runtime_error, "{}: input #{} not provided", type(), i);
         }
     }
 
-    // if ((!getInput(0)->empty()) && !getInput(2)->empty() && this->template getAttr<ResizeAttr::NoROI>() && this->template getAttr<ResizeAttr::NoSizes>())  {
     if (this->template getAttr<ResizeAttr::NoROI>() && this->template getAttr<ResizeAttr::NoSizes>())  {
 
+        /*
+         fmt::print("Condition scales: Input 0 and Input 2 must be provided and must have the same dimension, while Inputs 1 and 3 must not be provided.\n"); 
+        */
+
         AIDGE_ASSERT(getInput(0)->nbDims() ==  getInput(2)->size(),\
-             "input tensor and Scales must have the same dimentions.");
+             "input tensor and Scales must have the same dimensions.");
     
-        std::vector<DimSize_t> outDims = getInput(0)->dims();
+        std::vector<DimSize_t>      outDims = getInput(0)->dims();
         const std::vector<DimSize_t> inDims = getInput(0)->dims();
 
         std::shared_ptr<Tensor> fallback;
         const auto& scales = getInput(2)->refCastFrom(fallback, NativeType<int64_t>::type, "cpu");
 
-        // TODO: check if enusure different dims of sizes/scales
         for (std::size_t dim=0; dim < getInput(2)->size(); ++dim) {
             outDims[dim] = inDims[dim]*static_cast<int64_t*>(scales.getImpl()->hostPtr())[dim];
         }
@@ -58,42 +59,25 @@ bool Aidge::Resize_Op::forwardDims(bool /*allowDataDependency*/) {
         return true;
     }
 
-    // if ((!getInput(0)->empty()) && !getInput(3)->empty() && this->template getAttr<ResizeAttr::NoROI>() && this->template getAttr<ResizeAttr::NoScales>())  {
     if (this->template getAttr<ResizeAttr::NoROI>() && this->template getAttr<ResizeAttr::NoScales>())  {
 
-
         /*
-         condition 2. fmt::print("Condition sizes.\n");
-         to verify 2 arg
-         "Input 0 and 2 must be provided and input 1 must not be provided." 
-         "data_input" and "sizes"
-        */       
-        
-        std::vector<DimSize_t> outDims = getInput(0)->dims();
-
-        // // tmp
-        // const std::vector<DimSize_t> inDims = getInput(0)->dims();  
+         fmt::print("Condition sizes: Input 0 and Input 3 must be provided and must have the same dimension, while Inputs 1 and 2 must not be provided.\n"); 
+        */
 
         AIDGE_ASSERT(getInput(0)->nbDims() ==  getInput(3)->size(),\
-             "input tensor and Sizes must have the same dimentions.");
+             "input tensor and Sizes must have the same dimensions.");       
+        
+        std::vector<DimSize_t> outDims = getInput(0)->dims();
 
         std::shared_ptr<Tensor> fallback;
         const auto& sizes = getInput(3)->refCastFrom(fallback, NativeType<int64_t>::type, "cpu");
-        
-        /*
-        std::vector<DimSize_t> outDims[  width_out = sizes[0], \ 
-                                         height_out = sizes[1], \
-                                         depth_input_tensor, \ 
-                                         batch_input_tensor];
-        */
 
-        for (std::size_t dim=0; dim < getInput(3)->size(); ++dim) {
-            // TODO: verify if batch and depth is not 1 !!!!
-            
+        for (std::size_t dim=0; dim < getInput(3)->size(); ++dim) {            
             outDims[dim] = static_cast<int64_t*>(sizes.getImpl()->hostPtr())[dim];
         }
         mOutputs[0]->resize(outDims);
-        // fmt::print("Resize forward Dims for sizes. DONE.\n");
+
         return true;
     }
 
@@ -104,7 +88,7 @@ void Aidge::Resize_Op::setBackend(const std::string& name, Aidge::DeviceIdx_t de
     SET_IMPL_MACRO(Resize_Op, *this, name);
     mOutputs[0]->setBackend(name, device);
 
-    // By default, automatically set backend for roi, scales and sizes inputs
+    // By default, automatically set backend for all inputs: roi, scales and sizes 
     getInput(1)->setBackend(name, device);
     getInput(2)->setBackend(name, device);
     getInput(3)->setBackend(name, device);