[mmisbinary] [Up] [mmislesseq] Relations

mmisequal
Verify if two images are equal

Synopsis

bool = mmisequal( f1, f2 )

Implemented in Python.

Input

f1	Image Unsigned gray-scale (uint8 or uint16), signed (int32) or binary image.
f2	Image Unsigned gray-scale (uint8 or uint16), signed (int32) or binary image.

Output

bool

Boolean

Description

mmisequal compares the images f1 and f2 and returns true (1), if f1(x)=f2(x) , for all pixel x, and false (0), otherwise.

Examples

>>> f1 = uint8(arrayrange(4))

>>> print f1

[0 1 2 3]

>>> f2 = uint8([9, 5, 3, 3])

>>> print f2

[9 5 3 3]

>>> f3 = f1

>>> mmisequal(f1,f2)

0.0

>>> mmisequal(f1,f3)

1.0

Equation

Source Code
        def mmisequal(f1, f2, MSG=None):
    from Numeric import ravel, alltrue, array
    bool = alltrue(ravel(f1==f2))
    bool1 = 1
    if type(f1) is type(array([1])):
        bool1 = type(f1) is type(f2)
        bool1 = bool1 and ((f1.typecode() == f2.typecode()))
    if MSG != None:
        if bool:
            if bool1:
                print 'OK: ', MSG
            else:
                print 'WARNING:', MSG
        else:
            print 'ERROR: ', MSG
    return bool
    
      

mmfreedom	Control automatic data type conversion.
mmis	Verify if a relationship among images is true or false.
mmcmp	Compare two images pixelwisely.

[`mmisbinary`] [Up] [`mmislesseq`]
Copyright (c) 2003, Roberto A. Lotufo, UNICAMP-University of Campinas; Rubens C. Machado, CenPRA-Renato Archer Research Center.

mmisequal Verify if two images are equal