Index

A

• AdaBoost (adaptive boosting) / Understanding detection with cascade classifiers
• add-on lenses
  • Telephone attachment / Lens attachments
  • Wide-angle attachment / Lens attachments
  • Fisheye attachment / Lens attachments
  • Macro or close-up attachment / Lens attachments
  • Microscope attachment / Lens attachments
• alpha / RGB, BGR, RGBA, and BGRA
• Alternative Chi-Square algorithm
  • about / Understanding histogram analysis
• Apple's developer tools
  • setting up / Setting up Apple's developer tools
• application
  • using / Using the application and testing the tough cases
• application distribution
  • to testers / Distributing to testers and customers
  • to customers / Distributing to testers and customers
  • reference link / Distributing to testers and customers
• arc4random() function / Writing the code
• audiovisual (AV) / Controlling the camera
• augmented reality (AR) / Thinking about hybrid images
• AVFoundation / Controlling the camera

B

• Basic Linear Algebra Subprograms (BLAS)
  • about / Configuring the project
• BeanCounter
  • defining / Using the application and testing the tough cases
  • unevenly-lit background / An unevenly-lit background
  • motion blur / Motion blur
  • out of focus / Out of focus
  • reflection / Reflection
  • blobs, overlapping / Overlapping blobs
• BGR / RGB, BGR, RGBA, and BGRA
• BGRA / RGB, BGR, RGBA, and BGRA
• bgsegm module
  • URL / Segmentation
• Binary Robust Independent Elementary Features (BRIEF)
  • about / ORB and brute-force Hamming-distance matching
• bits per pixel (bpp) / RGB, BGR, RGBA, and BGRA
• blending controls
  • creating / Planning the blending controls
• blob
  • about / Understanding blob detection
• blob classifier
  • defining / Defining blob descriptors and a blob classifier
• blob descriptors
  • defining / Defining blob descriptors and a blob classifier
• blob detection
  • defining / Understanding blob detection
  • segmentation / Segmentation
  • canny edge detection / Canny edge detection
  • contour analysis / Contour analysis
• blob detector
  • problems / Understanding blob detection
  • defining / Defining blobs and a blob detector
• blobs
  • defining / Defining blobs and a blob detector
  • detecting, against plain background / Detecting blobs against a plain background
  • classifying, by color and keypoints / Classifying blobs by color and keypoints
• bokeh balls
  • about / Understanding blob detection
• border following
  • about / Contour analysis
• Brute-force matching
  • about / ORB and brute-force Hamming-distance matching

C

• camera
  • using / Understanding the camera and setting up photographic accessories
  • lights, setting up / Lights
  • stabilization / Tripods and other stabilization
  • tripods / Tripods and other stabilization
  • lens attachment / Lens attachments
  • requirement specifying, for LightWork / Specifying the camera requirement
  • controlling / Controlling the camera
  • CvVideoCamera, subclassing / Subclassing CvVideoCamera
  • CvVideoCamera subclass, using in view controller / Using the CvVideoCamera subclass in the view controller
• cascade / Understanding detection with cascade classifiers
• cascade classifiers
  • used, for detection / Understanding detection with cascade classifiers
  • haar-like features / Haar-like features
  • local binary pattern (LBP) / Local binary pattern features
  • reference link / Local binary pattern features
• cats' expression
  • examples / Using the application and acting like a cat
• code files
  • AppDelegate.h / Writing the code
  • AppDelegate.m / Writing the code
  • ViewController.h / Writing the code
  • ViewController.m / Writing the code
• color formats
  • about / Working with various color formats
  • RGB / RGB, BGR, RGBA, and BGRA
  • BGR / RGB, BGR, RGBA, and BGRA
  • BGRA / RGB, BGR, RGBA, and BGRA
  • RGBA / RGB, BGR, RGBA, and BGRA
• constants, cascade classifiers
  • scale factor / Detecting a hierarchy of face elements
  • minimum neighbors / Detecting a hierarchy of face elements
  • minimum size / Detecting a hierarchy of face elements
• contrast limited adaptive histogram equalization (CLAHE). / Defining faces and a face detector
• convolution matrices
  • reference link / Thinking about hybrid images
• convolution matrix / Thinking about hybrid images
• CoolPig application
  • developing / Developing a minimal application
  • project, creating / Creating the project
  • files, adding / Adding files to the project
  • configuring / Configuring the project
  • interface, laying out / Laying out an interface
  • code, writing / Writing the code
  • interface element, connecting / Connecting an interface element to the code
  • building / Building and running the application
  • executing / Building and running the application
• corners
  • about / Understanding keypoint matching
• CvVideoCamera
  • (int)imageWidth method / Subclassing CvVideoCamera
  • (int)imageHeight method / Subclassing CvVideoCamera
  • (void)updateSize method / Subclassing CvVideoCamera
  • (void)layoutPreviewLayer method / Subclassing CvVideoCamera

D

• derivative
  • about / Canny edge detection

F

• face analysis
  • about / Learning more about face analysis
• face detector
  • defining / Defining faces and a face detector
• face elements
  • aligning / Aligning and blending face elements
  • blending / Aligning and blending face elements
• face merging application
  • planning / Planning a face merging application
• faces
  • defining / Defining faces and a face detector
• Fast Library for Approximate Nearest Neighbors (FLANN)
  • about / SURF and FLANN
• Features from Accelerated Segment Test (FAST)
  • about / ORB and brute-force Hamming-distance matching
• field of view (FOV) / Understanding the camera and setting up photographic accessories

G

• Gaussian blur effect / Thinking about hybrid images
• GNU Image Manipulation Program (GIMP)
  • about / Thinking about hybrid images
  • URL / Thinking about hybrid images
• grayscale
  • about / YUV and grayscale

H

• Hamming distance
  • about / ORB and brute-force Hamming-distance matching
• hierarchy of face elements
  • detecting / Detecting a hierarchy of face elements
• histogram analysis
  • defining / Understanding histogram analysis
• hybrid images
  • creating / Thinking about hybrid images

I

• immutable type / Defining faces and a face detector
• integrated development environment (IDE)
  • about / Setting up Apple's developer tools
• International Standards Organization (ISO) / Understanding the camera and setting up photographic accessories
• iOS Developer Program
  • URL / Distributing to testers and customers
• iOS Provisioning Portal
  • URL / Distributing to testers and customers
• iPhoneography / Understanding the camera and setting up photographic accessories
• ISO speed / Understanding the camera and setting up photographic accessories
• iTunes Connect
  • URL / Distributing to testers and customers

K

• kernel filter / Thinking about hybrid images
• keypoint matching
  • defining / Understanding keypoint matching
  • SURF / SURF and FLANN
  • FLANN / SURF and FLANN
  • ORB / ORB and brute-force Hamming-distance matching
  • brute-force Hamming-distance matching / ORB and brute-force Hamming-distance matching

L

• Lanczos / Expanding the view controller's implementation
• Landscape-right orientation / Subclassing CvVideoCamera
• Laplacian edge-finding effect / Thinking about hybrid images
• Leningrad Optical Mechanical Associtaion (LOMO) / Understanding the camera and setting up photographic accessories
• lights
  • setting up / Lights
• LightWork
  • project, configuring / Configuring the project
  • frameworks, adding / Adding frameworks
  • camera requirement, specifying / Specifying the camera requirement
  • view controller, defining / Defining and laying out the view controller
  • view controller, laying out / Defining and laying out the view controller
  • busy mode, stopping / Starting and stopping the busy mode
  • busy mode, starting / Starting and stopping the busy mode
  • image, saving to Photos library / Saving an image to the Photos library
  • alert, displaying / Displaying an alert
  • image, sharing via social media / Sharing an image via social media
  • executing / Running the application
  • blending controls, creating / Planning the blending controls
  • view controller's interface, expanding / Expanding the view controller's interface
  • view controller's implementation, expanding / Expanding the view controller's implementation
  • using / Using the application for practical purposes
  • scene changes, viewing / Seeing changes in a scene
  • new object, previewing in scene / Previewing a new object in a scene
  • document copy, previewing / Previewing a copy of a document or drawing
  • drawing copy, previewing / Previewing a copy of a document or drawing
• Linear Algebra Package (LAPACK)
  • about / Configuring the project
• local binary pattern histogram (LBPH) / Local binary pattern features
• Lomography / Understanding the camera and setting up photographic accessories

M

• ManyMasks project
  • configuring / Configuring the project
  • building / Using the application and acting like a cat
  • running, on iOS / Using the application and acting like a cat
• model-view-controller (MVC) pattern / Writing the code

N

• neighbors / Understanding detection with cascade classifiers

O

• object classification application
  • planning / Planning an object classification application
• OpenCV
  • URL / Getting the prebuilt framework with standard modules
  • references / Understanding keypoint matching
  • defining / Taking your study of OpenCV to the next level
• OpenCV 3
  • references, for documentation / Finding documentation and support
• OpenCV framework
  • setting up / Setting up the OpenCV framework
  • prebuilt framework, obtaining with standard modules / Getting the prebuilt framework with standard modules
  • building, from source with extra modules / Building the framework from source with extra modules
  • extra modules, creating as optional / Making the extra modules optional in our code
• OpenCV functions
  • reference link / Understanding transformations
• ORB algorithm
  • URL / ORB and brute-force Hamming-distance matching
• Oriented FAST and Rotated BRIEF (ORB)
  • about / ORB and brute-force Hamming-distance matching

P

• packed formats
  • about / YUV and grayscale
• panoramic attachment / Lens attachments
• photographic accessories
  • setting up / Understanding the camera and setting up photographic accessories
• photo sharing application
  • planning / Planning a photo sharing application
• Photoshop
  • reference link / Thinking about hybrid images
• Photos library
  • image, saving / Saving an image to the Photos library
• planar formats
  • about / YUV and grayscale
• project
  • configuring / Configuring the project

R

• RGB
  • about / RGB, BGR, RGBA, and BGRA
  / RGB, BGR, RGBA, and BGRA
• RGBA / RGB, BGR, RGBA, and BGRA
• ring flash / Lights
• rotation-invariant
  • about / Understanding keypoint matching

S

• scale-invariant
  • about / Understanding keypoint matching
• Scale-Invariant Feature Transform (SIFT)
  • about / SURF and FLANN
• segue / Defining and laying out the view controllers
• Speeded-up Robust Features (SURF)
  • about / SURF and FLANN
• splash screen
  • laying out / Laying out the splash screen
• StackOverflow
  • URL / Finding documentation and support
• standard modules
  • used, for obtaining prebuilt OpenCV framework / Getting the prebuilt framework with standard modules
• stateless / Defining faces and a face detector

T

• transformations
  • about / Understanding transformations
  • translation / Understanding transformations
  • rotation / Understanding transformations
  • scale / Understanding transformations

U

• unintended racial bias, in computer vision
  • URL / Segmentation

V

• view controllers
  • defining / Defining and laying out the view controllers, Defining and laying out the view controllers
  • laying out / Defining and laying out the view controllers, Defining and laying out the view controllers
  • real faces, capturing / Capturing and previewing real faces
  • real faces, previewing / Capturing and previewing real faces
  • hybrid faces, reviewing / Reviewing, saving, and sharing hybrid faces
  • hybrid faces, saving / Reviewing, saving, and sharing hybrid faces
  • hybrid faces, sharing / Reviewing, saving, and sharing hybrid faces
  • seguing between / Seguing between the view controllers, Seguing between the view controllers
  • blobs, capturing / Capturing and previewing blobs
  • blobs, previewing / Capturing and previewing blobs
  • classified blobs, reviewing / Reviewing, saving, and sharing classified blobs
  • classified blobs, saving / Reviewing, saving, and sharing classified blobs
  • classified blobs, sharing / Reviewing, saving, and sharing classified blobs

W

• window / Understanding detection with cascade classifiers

X

• Xcode
  • URL / Setting up Apple's developer tools
• xfeatures2d / Building the framework from source with extra modules
• xphoto / Building the framework from source with extra modules

Y

• YUV
  • about / YUV and grayscale