is the "IsBinary" funtion return wrong value?

[zzb-client]

in thresholder.h line 75

/// Returns true if the source image is binary.
bool IsBinary() const {
return pix_channels_ == 0;
}

is it should be "return pix_channels_ == 1;" for binary images?

[amitdo]

/// Returns true if the source image is binary.
bool IsBinary() const {
return pix_channels_ == 0;
}

The code is right.

Channel - 8 bit.
Binary - 1 bit.