Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Number Scaling

Hi, What is the most efficient way to scale numbers into the range of -1, 1 in Verilog using Cyclone II? That is the fastest code with least resources? are there any free IP cores from Altera o...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Hi,

Sorry for late reply .. got busy with another HW problem!

Well, the data represents the number of black pixels in certain zones in a binary image ..

The data is an input to a neural network for classification which requires a normalized input in the range of -1 to 1!

Well, i tried Kaz's method in C, the fixed point representation as displayed in hex format doesn't match the value!! What I did is multiply the floating point number by 1024 (10 bit fraction accuracy) and cast to integer .. it didn't match :S

Thanks