[mmse2hmt] [Up] [mminfcanon] Sup-generating And Inf-generating

mmthreshad
Threshold (adaptive)

Synopsis

y = mmthreshad( f, f1, f2 = None )

Implemented in Python.

Input

f Image Gray-scale (uint8 or uint16) image.

Image Gray-scale (uint8 or uint16) image.

lower value

Image Gray-scale (uint8 or uint16) image.

upper value

Default: None

Output

y	Image Binary image.

Description

mmthreshad creates the image y as the threshold of the image f by the images f1 and f2. A pixel in y has the value 1 when the value of the corresponding pixel in f is between the values of the corresponding pixels in f1 and f2.

Examples

>>> a = mmreadgray('keyb.tif')

>>> mmshow(a)

>>> b = mmthreshad(a,uint8(10), uint8(50))

>>> mmshow(b)

>>> c = mmthreshad(a,238)

Warning: Converting input image from int32 to uint8.

>>> mmshow(c)


a	b


c

Equation

Source Code
        def mmthreshad(f, f1, f2=None):
    if f2 is None: 
      y = mmbinary(f1 <= f)
    else:
      y = mmbinary((f1 <= f) & (f <= f2))
    return y
    
      

mmfreedom	Control automatic data type conversion.
mmgray	Convert a binary image into a gray-scale image.
mmbinary	Convert a gray-scale image into a binary image
mmcmp	Compare two images pixelwisely.

[`mmse2hmt`] [Up] [`mminfcanon`]
Copyright (c) 2003, Roberto A. Lotufo, UNICAMP-University of Campinas; Rubens C. Machado, CenPRA-Renato Archer Research Center.

mmthreshad Threshold (adaptive)