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18 Chapter 1 ■ Practical Aspects of a Vision System

display_image (IMAGE x) Displays the specified image on the
screen

save_image (IMAGE x, char *name) Saves the image in a file with the given
name
IMAGE get_image (char *name) Reads the image in the named file and
return a pointer to it

IMAGE grab_image () Captures an image from an attached
webcam and return a pointer to it

1.5 Website Files

The website associated with this book contains code and data associated with
each chapter, in addition to new information, errata, and other comments.
Readers should create a directory for this information on their PC called
C:\AIPCV. Within that, directories for each chapter can be named CH1, CH2,and
so on.
The following material created for this chapter will appear in C:\AIPCV\CH1:

capture.c Gets an image from a webcam
lib0.c A collection of OpenCV input/output/display functions
thr_glh.c Thresholds an image

1.6 References

Agam, Gady. ‘‘Introduction to Programming With OpenCV,’’ www.edu/~agam/
cs512/lect-notes/opencv-intro/opencv-intro.html (accessed January
27, 2006).
Bradsky, Gary and Kaehler, Adrian. Learning OpenCV: Computer Vision with
the OpenCV Library. Sebastopol: O’Reilly Media Inc, 2008.
‘‘CV Reference Manual,’’ http://cognotics.com/opencv/docs/1.0/ref/
opencvref_cv.htm (accessed March 16, 2010).
‘‘cvCamReference Manual,’’ www.cognotics.com/opencv/docs/1.0/cvcam.pdf
(accessed March 16, 2010).
‘‘CXCORE Reference Manual,’’ http://cognotics.com/opencv/docs/1.0/ref/
opencvref_cxcore.htm (accessed March 16, 2010).
‘‘Experimental and Obsolete FunctionalityReference,’’ http://cognotics.com/
opencv/docs/1.0/ref/opencvref_cvaux.htm (accessed March 16, 2010).