bitxor and Contourlet problem

Question

Reza Sedagheh 2019-8-12

回答： TARUN 2025-5-28

Hi Guys,

I read an image and decomposite using Contourlet Transform

in one line I used bitxor function with one of the decomposition coefficent from Contourlet.

but the main problem is bitxor function working with integer but the decomposition image is double.

EIR(m,n) = bitxor(mod(floor(abs(y)*10^15),256),EIRc(m,n));

EIRc(m,n) is double...

could you please help me someone to solve this problem?

Answer 1

TARUN 2025-5-28

I understand that “bitxor" method expects an integer as an argument but “EIRc(m,n)” returns a double value.

To resolve this, you can convert the double value to uint8 using the uint8 function, which is appropriate if you're working with 8-bit data.

Here’s the updated line of code with the necessary type conversion:

EIR(m, n) = bitxor(uint8(mod(floor(abs(y)*1e15), 256)), uint8(EIRc(m,n)));

You can refer to the documentation for more details on the uint8 function: