How to use Crop about mxnet.cpp

[hjk41]

sorry for late reply. It should be usable using something like this:

Symbol cropped = Crop("cropped", 1, offset, h_w)(to_be_cropped_symbol)

or

Symbol cropped = Crop("cropped", 2)(to_be_cropped_symbol, shape_symbol)

[zhubuntu]

@hjk41 Thanks,I try what you say ,but it reports

错误  33  error C2064: 项不会计算为接受 2 个参数的函数  
and
错误  39  IntelliSense:  在没有适当 operator() 的情况下调用类类型的对象或将函数转换到指向函数的类

So I change the

inline Symbol Crop(const std::string& symbol_name,
                   int num_args,
                   Shape offset = Shape(0, 0),
                   Shape h_w = Shape(0, 0),
                   bool center_crop = false) {
  return Operator("Crop")
           .SetParam("num_args", num_args)
           .SetParam("offset", offset)
           .SetParam("h_w", h_w)
           .SetParam("center_crop", center_crop)
           .CreateSymbol(symbol_name);
}

to

inline Symbol Crop(const std::string& symbol_name,
    int num_args,
    Symbol data,
    Symbol crop_like,
    Shape offset = Shape(0, 0),
    Shape h_w = Shape(0, 0),
    bool center_crop = false) {
    return Operator("Crop")
        .SetParam("num_args", num_args)
        .SetParam("offset", offset)
        .SetParam("h_w", h_w)
        .SetParam("center_crop", center_crop)
        .SetInput("arg0", data)
        .SetInput("arg1", crop_like)
        .CreateSymbol(symbol_name);
}

for a temporary solution.

[hjk41]

Great move. Let me see why the code I posted does not work and fix it.

On Mon, Mar 28, 2016 at 6:35 PM, zhubuntu [email protected] wrote:

@hjk41 https://github.com/hjk41 Thanks,I try what you say ,but it
reports

错误 33 error C2064: 项不会计算为接受 2 个参数的函数 and
错误 39 IntelliSense: 在没有适当 operator() 的情况下调用类类型的对象或将函数转换到指向函数的类

So I change the

inline Symbol Crop(const std::string& symbol_name,
int num_args,
Shape offset = Shape(0, 0),
Shape h_w = Shape(0, 0),
bool center_crop = false) {
return Operator("Crop")
.SetParam("num_args", num_args)
.SetParam("offset", offset)
.SetParam("h_w", h_w)
.SetParam("center_crop", center_crop)
.CreateSymbol(symbol_name);
}

to

inline Symbol Crop(const std::string& symbol_name,
int num_args,
Symbol data,
Symbol crop_like,
Shape offset = Shape(0, 0),
Shape h_w = Shape(0, 0),
bool center_crop = false) {
return Operator("Crop")
.SetParam("num_args", num_args)
.SetParam("offset", offset)
.SetParam("h_w", h_w)
.SetParam("center_crop", center_crop)
.SetInput("arg0", data)
.SetInput("arg1", crop_like)
.CreateSymbol(symbol_name);
}

for a temporary solution.

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#16 (comment)

HONG Chuntao
System Research Group
Microsoft Research Asia