# 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

## See also

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.