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A

addAnswer() - Method in class nl.captcha.audio.AudioCaptcha.Builder

addAnswer(TextProducer) - Method in class nl.captcha.audio.AudioCaptcha.Builder

addBackground(BufferedImage) - Method in interface nl.captcha.backgrounds.BackgroundProducer

Add the background to the given image.

addBackground(BufferedImage) - Method in class nl.captcha.backgrounds.FlatColorBackgroundProducer

addBackground(BufferedImage) - Method in class nl.captcha.backgrounds.GradiatedBackgroundProducer

addBackground(BufferedImage) - Method in class nl.captcha.backgrounds.SquigglesBackgroundProducer

addBackground(BufferedImage) - Method in class nl.captcha.backgrounds.TransparentBackgroundProducer

addBackground() - Method in class nl.captcha.Captcha.Builder

Add a background using the default BackgroundProducer (a TransparentBackgroundProducer).

addBackground(BackgroundProducer) - Method in class nl.captcha.Captcha.Builder

Add a background using the given BackgroundProducer.

addBorder() - Method in class nl.captcha.Captcha.Builder

Draw a single-pixel wide black border around the image.

addNoise() - Method in class nl.captcha.audio.AudioCaptcha.Builder

addNoise(NoiseProducer) - Method in class nl.captcha.audio.AudioCaptcha.Builder

addNoise(List<Sample>) - Method in interface nl.captcha.audio.noise.NoiseProducer

addNoise(List<Sample>) - Method in class nl.captcha.audio.noise.RandomNoiseProducer

Append the given samples to each other, then add random noise to the result.

addNoise() - Method in class nl.captcha.Captcha.Builder

Add noise using the default NoiseProducer (a CurvedLineNoiseProducer).

addNoise(NoiseProducer) - Method in class nl.captcha.Captcha.Builder

Add noise using the given NoiseProducer.

addText() - Method in class nl.captcha.Captcha.Builder

Generate the answer to the CAPTCHA using the DefaultTextProducer.

addText(TextProducer) - Method in class nl.captcha.Captcha.Builder

Generate the answer to the CAPTCHA using the given TextProducer.

addText(WordRenderer) - Method in class nl.captcha.Captcha.Builder

Generate the answer to the CAPTCHA using the default TextProducer, and render it to the image using the given WordRenderer.

addText(TextProducer, WordRenderer) - Method in class nl.captcha.Captcha.Builder

Generate the answer to the CAPTCHA using the given TextProducer, and render it to the image using the given WordRenderer.

addVoice() - Method in class nl.captcha.audio.AudioCaptcha.Builder

addVoice(VoiceProducer) - Method in class nl.captcha.audio.AudioCaptcha.Builder

append(List<Sample>) - Static method in class nl.captcha.audio.Mixer

ArabicTextProducer - Class in nl.captcha.text.producer

ArabicTextProducer() - Constructor for class nl.captcha.text.producer.ArabicTextProducer

ArabicTextProducer(int) - Constructor for class nl.captcha.text.producer.ArabicTextProducer

asByteArray() - Method in class nl.captcha.audio.Sample

Return the interleaved samples as a byte[].

asByteArray(long, double[]) - Static method in class nl.captcha.audio.Sample

Helper method to convert a double[] to a byte[] in a format that can be used by AudioInputStream.

AudioCaptcha - Class in nl.captcha.audio

A builder for generating a CAPTCHA audio/answer pair.

AudioCaptcha.Builder - Class in nl.captcha.audio

AudioCaptcha.Builder() - Constructor for class nl.captcha.audio.AudioCaptcha.Builder

AudioCaptchaServlet - Class in nl.captcha.servlet

Generates a new AudioCaptcha and writes the audio to the response.

AudioCaptchaServlet() - Constructor for class nl.captcha.servlet.AudioCaptchaServlet

B

BackgroundProducer - Interface in nl.captcha.backgrounds

BaffleGimpyRenderer - Class in nl.captcha.gimpy

BaffleGimpyRenderer() - Constructor for class nl.captcha.gimpy.BaffleGimpyRenderer

BlockFilter - Class in nl.captcha.gimpy.filter

BlockFilter() - Constructor for class nl.captcha.gimpy.filter.BlockFilter

BlockGimpyRenderer - Class in nl.captcha.gimpy

BlockGimpyRenderer() - Constructor for class nl.captcha.gimpy.BlockGimpyRenderer

BlockGimpyRenderer(int) - Constructor for class nl.captcha.gimpy.BlockGimpyRenderer

build() - Method in class nl.captcha.audio.AudioCaptcha.Builder

build() - Method in class nl.captcha.Captcha.Builder

Build the CAPTCHA.

build() - Method in class nl.captcha.CaptchaBean

C

Captcha - Class in nl.captcha

A builder for generating a CAPTCHA image/answer pair.

Captcha.Builder - Class in nl.captcha

Captcha.Builder(int, int) - Constructor for class nl.captcha.Captcha.Builder

CaptchaBean - Class in nl.captcha

Simple CAPTCHA bean intended to be used by Spring.

CaptchaBean(int, int) - Constructor for class nl.captcha.CaptchaBean

CaptchaServletUtil - Class in nl.captcha.servlet

CaptchaServletUtil() - Constructor for class nl.captcha.servlet.CaptchaServletUtil

ChineseTextProducer - Class in nl.captcha.text.producer

TextProducer implementation that will return Chinese characters.

ChineseTextProducer() - Constructor for class nl.captcha.text.producer.ChineseTextProducer

ChineseTextProducer(int) - Constructor for class nl.captcha.text.producer.ChineseTextProducer

ColoredEdgesWordRenderer - Class in nl.captcha.text.renderer

ColoredEdgesWordRenderer() - Constructor for class nl.captcha.text.renderer.ColoredEdgesWordRenderer

ColoredEdgesWordRenderer(List<Color>, List<Font>) - Constructor for class nl.captcha.text.renderer.ColoredEdgesWordRenderer

ColoredEdgesWordRenderer(List<Color>, List<Font>, float) - Constructor for class nl.captcha.text.renderer.ColoredEdgesWordRenderer

CurvedLineNoiseProducer - Class in nl.captcha.noise

Adds a randomly curved line to the image.

CurvedLineNoiseProducer() - Constructor for class nl.captcha.noise.CurvedLineNoiseProducer

CurvedLineNoiseProducer(Color, float) - Constructor for class nl.captcha.noise.CurvedLineNoiseProducer

D

decodeBytes(byte[], double[]) - Method in class nl.captcha.audio.Sample

DefaultTextProducer - Class in nl.captcha.text.producer

Produces text of a given length from a given array of characters.

DefaultTextProducer() - Constructor for class nl.captcha.text.producer.DefaultTextProducer

DefaultTextProducer(int, char[]) - Constructor for class nl.captcha.text.producer.DefaultTextProducer

DefaultWordRenderer - Class in nl.captcha.text.renderer

Renders the answer onto the image.

DefaultWordRenderer() - Constructor for class nl.captcha.text.renderer.DefaultWordRenderer

Use the default color (black) and fonts (Arial and Courier).

DefaultWordRenderer(List<Color>, List<Font>) - Constructor for class nl.captcha.text.renderer.DefaultWordRenderer

Build a WordRenderer using the given Colors and Fonts.

doGet(HttpServletRequest, HttpServletResponse) - Method in class nl.captcha.servlet.AudioCaptchaServlet

doGet(HttpServletRequest, HttpServletResponse) - Method in class nl.captcha.servlet.SimpleCaptchaServlet

doGet(HttpServletRequest, HttpServletResponse) - Method in class nl.captcha.servlet.StickyCaptchaServlet

Write out the CAPTCHA image stored in the session.

doPost(HttpServletRequest, HttpServletResponse) - Method in class nl.captcha.servlet.AudioCaptchaServlet

DropShadowGimpyRenderer - Class in nl.captcha.gimpy

Adds a dark drop-shadow.

DropShadowGimpyRenderer() - Constructor for class nl.captcha.gimpy.DropShadowGimpyRenderer

DropShadowGimpyRenderer(int, float) - Constructor for class nl.captcha.gimpy.DropShadowGimpyRenderer

DropShadowGimpyRenderer(int, float, float) - Constructor for class nl.captcha.gimpy.DropShadowGimpyRenderer

F

FileUtil - Class in nl.captcha.util

FileUtil() - Constructor for class nl.captcha.util.FileUtil

FishEyeGimpyRenderer - Class in nl.captcha.gimpy

Overlays a warped grid to the image.

FishEyeGimpyRenderer() - Constructor for class nl.captcha.gimpy.FishEyeGimpyRenderer

FishEyeGimpyRenderer(Color, Color) - Constructor for class nl.captcha.gimpy.FishEyeGimpyRenderer

FiveLetterFirstNameTextProducer - Class in nl.captcha.text.producer

FiveLetterFirstNameTextProducer() - Constructor for class nl.captcha.text.producer.FiveLetterFirstNameTextProducer

FlatColorBackgroundProducer - Class in nl.captcha.backgrounds

FlatColorBackgroundProducer() - Constructor for class nl.captcha.backgrounds.FlatColorBackgroundProducer

FlatColorBackgroundProducer(Color) - Constructor for class nl.captcha.backgrounds.FlatColorBackgroundProducer

G

getAnswer() - Method in class nl.captcha.audio.AudioCaptcha

getAnswer() - Method in class nl.captcha.Captcha

getAnswer() - Method in class nl.captcha.CaptchaBean

getAudioInputStream() - Method in class nl.captcha.audio.Sample

getBackground(int, int) - Method in interface nl.captcha.backgrounds.BackgroundProducer

getBackground(int, int) - Method in class nl.captcha.backgrounds.FlatColorBackgroundProducer

getBackground(int, int) - Method in class nl.captcha.backgrounds.GradiatedBackgroundProducer

getBackground(int, int) - Method in class nl.captcha.backgrounds.SquigglesBackgroundProducer

getBackground(int, int) - Method in class nl.captcha.backgrounds.TransparentBackgroundProducer

getBgProd() - Method in class nl.captcha.CaptchaBean

getChallenge() - Method in class nl.captcha.audio.AudioCaptcha

getChannelSamples(int, double[], double[]) - Method in class nl.captcha.audio.Sample

Extract samples of a particular channel from interleavedSamples and copy them into channelSamples

getFormat() - Method in class nl.captcha.audio.Sample

getGimpy() - Method in class nl.captcha.CaptchaBean

getImage() - Method in class nl.captcha.Captcha

Get the CAPTCHA image, a PNG.

getImage() - Method in class nl.captcha.CaptchaBean

getInterleavedSamples() - Method in class nl.captcha.audio.Sample

getInterleavedSamples(long, long, double[]) - Method in class nl.captcha.audio.Sample

Get the interleaved decoded samples for all channels, from sample index begin (included) to sample index end (excluded) and copy them into samples.

getNoiseProd() - Method in class nl.captcha.CaptchaBean

getSampleCount() - Method in class nl.captcha.audio.Sample

Return the number of samples of all channels

getStereoSamples(double[], double[]) - Method in class nl.captcha.audio.Sample

Convenience method.

getText() - Method in class nl.captcha.text.producer.ArabicTextProducer

getText() - Method in class nl.captcha.text.producer.ChineseTextProducer

getText() - Method in class nl.captcha.text.producer.DefaultTextProducer

getText() - Method in class nl.captcha.text.producer.FiveLetterFirstNameTextProducer

getText() - Method in class nl.captcha.text.producer.NumbersAnswerProducer

getText() - Method in interface nl.captcha.text.producer.TextProducer

Generate a series of characters to be used as the answer for the CAPTCHA.

getTimeStamp() - Method in class nl.captcha.Captcha

getTxtProd() - Method in class nl.captcha.CaptchaBean

getVocalization(char) - Method in class nl.captcha.audio.producer.RandomNumberVoiceProducer

getVocalization(char) - Method in interface nl.captcha.audio.producer.VoiceProducer

getVoices() - Method in class nl.captcha.audio.producer.RandomNumberVoiceProducer

gimp() - Method in class nl.captcha.Captcha.Builder

Gimp the image using the default GimpyRenderer (a RippleGimpyRenderer).

gimp(GimpyRenderer) - Method in class nl.captcha.Captcha.Builder

Gimp the image using the given GimpyRenderer.

gimp(BufferedImage) - Method in class nl.captcha.gimpy.BaffleGimpyRenderer

gimp(BufferedImage) - Method in class nl.captcha.gimpy.BlockGimpyRenderer

gimp(BufferedImage) - Method in class nl.captcha.gimpy.DropShadowGimpyRenderer

gimp(BufferedImage) - Method in class nl.captcha.gimpy.FishEyeGimpyRenderer

gimp(BufferedImage) - Method in interface nl.captcha.gimpy.GimpyRenderer

gimp(BufferedImage) - Method in class nl.captcha.gimpy.RippleGimpyRenderer

Apply a RippleFilter to the image.

gimp(BufferedImage) - Method in class nl.captcha.gimpy.ShearGimpyRenderer

gimp(BufferedImage) - Method in class nl.captcha.gimpy.StretchGimpyRenderer

GimpyRenderer - Interface in nl.captcha.gimpy

GradiatedBackgroundProducer - Class in nl.captcha.backgrounds

Creates a gradiated background with the given from and to Color values.

GradiatedBackgroundProducer() - Constructor for class nl.captcha.backgrounds.GradiatedBackgroundProducer

GradiatedBackgroundProducer(Color, Color) - Constructor for class nl.captcha.backgrounds.GradiatedBackgroundProducer

I

init(ServletConfig) - Method in class nl.captcha.servlet.SimpleCaptchaServlet

init(ServletConfig) - Method in class nl.captcha.servlet.StickyCaptchaServlet

isAddBorder() - Method in class nl.captcha.CaptchaBean

isCorrect(String) - Method in class nl.captcha.audio.AudioCaptcha

isCorrect(String) - Method in class nl.captcha.Captcha

isCorrect(String) - Method in class nl.captcha.CaptchaBean

M

makeNoise(BufferedImage) - Method in class nl.captcha.noise.CurvedLineNoiseProducer

makeNoise(BufferedImage) - Method in interface nl.captcha.noise.NoiseProducer

makeNoise(BufferedImage) - Method in class nl.captcha.noise.StraightLineNoiseProducer

mix(Sample, double, Sample, double) - Static method in class nl.captcha.audio.Mixer

Mixer - Class in nl.captcha.audio

Helper class for operating on audio Samples.

Mixer() - Constructor for class nl.captcha.audio.Mixer

N

NAME - Static variable in class nl.captcha.audio.AudioCaptcha

NAME - Static variable in class nl.captcha.Captcha

nl.captcha - package nl.captcha

nl.captcha.audio - package nl.captcha.audio

nl.captcha.audio.noise - package nl.captcha.audio.noise

nl.captcha.audio.producer - package nl.captcha.audio.producer

nl.captcha.backgrounds - package nl.captcha.backgrounds

nl.captcha.gimpy - package nl.captcha.gimpy

nl.captcha.gimpy.filter - package nl.captcha.gimpy.filter

nl.captcha.noise - package nl.captcha.noise

nl.captcha.servlet - package nl.captcha.servlet

nl.captcha.text.producer - package nl.captcha.text.producer

nl.captcha.text.renderer - package nl.captcha.text.renderer

nl.captcha.util - package nl.captcha.util

NoiseProducer - Interface in nl.captcha.audio.noise

NoiseProducer - Interface in nl.captcha.noise

NumbersAnswerProducer - Class in nl.captcha.text.producer

TextProducer implementation that will return a series of numbers.

NumbersAnswerProducer() - Constructor for class nl.captcha.text.producer.NumbersAnswerProducer

NumbersAnswerProducer(int) - Constructor for class nl.captcha.text.producer.NumbersAnswerProducer

R

RandomNoiseProducer - Class in nl.captcha.audio.noise

Adds noise to a Sample from one of the given noiseFiles.

RandomNoiseProducer() - Constructor for class nl.captcha.audio.noise.RandomNoiseProducer

RandomNoiseProducer(String[]) - Constructor for class nl.captcha.audio.noise.RandomNoiseProducer

RandomNumberVoiceProducer - Class in nl.captcha.audio.producer

VoiceProducer which generates a vocalization for a given number, randomly selecting from a list of voices.

RandomNumberVoiceProducer() - Constructor for class nl.captcha.audio.producer.RandomNumberVoiceProducer

RandomNumberVoiceProducer(Map<Integer, String[]>) - Constructor for class nl.captcha.audio.producer.RandomNumberVoiceProducer

Creates a RandomNumberVoiceProducer for the given voices, a map of numbers to their corresponding filenames.

readResource(String) - Static method in class nl.captcha.util.FileUtil

Get a file resource and return it as an InputStream.

readSample(String) - Static method in class nl.captcha.util.FileUtil

render(String, BufferedImage) - Method in class nl.captcha.text.renderer.ColoredEdgesWordRenderer

render(String, BufferedImage) - Method in class nl.captcha.text.renderer.DefaultWordRenderer

Render a word onto a BufferedImage.

render(String, BufferedImage) - Method in class nl.captcha.text.renderer.StretchyWordRenderer

render(String, BufferedImage) - Method in interface nl.captcha.text.renderer.WordRenderer

Render a word to a BufferedImage.

RippleGimpyRenderer - Class in nl.captcha.gimpy

RippleGimpyRenderer() - Constructor for class nl.captcha.gimpy.RippleGimpyRenderer

S

Sample - Class in nl.captcha.audio

Class representing a sound sample, typically read in from a file.

Sample(InputStream) - Constructor for class nl.captcha.audio.Sample

SC_AUDIO_FORMAT - Static variable in class nl.captcha.audio.Sample

setAddBorder(boolean) - Method in class nl.captcha.CaptchaBean

setAnswer(String) - Method in class nl.captcha.CaptchaBean

setBgProd(BackgroundProducer) - Method in class nl.captcha.CaptchaBean

setFromColor(Color) - Method in class nl.captcha.backgrounds.GradiatedBackgroundProducer

setGimpy(GimpyRenderer) - Method in class nl.captcha.CaptchaBean

setNoiseProd(NoiseProducer) - Method in class nl.captcha.CaptchaBean

setToColor(Color) - Method in class nl.captcha.backgrounds.GradiatedBackgroundProducer

setTxtProd(TextProducer) - Method in class nl.captcha.CaptchaBean

ShearGimpyRenderer - Class in nl.captcha.gimpy

ShearGimpyRenderer() - Constructor for class nl.captcha.gimpy.ShearGimpyRenderer

ShearGimpyRenderer(Color) - Constructor for class nl.captcha.gimpy.ShearGimpyRenderer

SimpleCaptchaServlet - Class in nl.captcha.servlet

Generates, displays, and stores in session a 200x50 CAPTCHA image with sheared black text, a solid dark grey background, and a slightly curved line over the text.

SimpleCaptchaServlet() - Constructor for class nl.captcha.servlet.SimpleCaptchaServlet

SquigglesBackgroundProducer - Class in nl.captcha.backgrounds

SquigglesBackgroundProducer() - Constructor for class nl.captcha.backgrounds.SquigglesBackgroundProducer

StickyCaptchaServlet - Class in nl.captcha.servlet

Builds a CAPTCHA and stores it in the session.

StickyCaptchaServlet() - Constructor for class nl.captcha.servlet.StickyCaptchaServlet

StraightLineNoiseProducer - Class in nl.captcha.noise

Draws a 4-pixel thick straight red line through the given image.

StraightLineNoiseProducer() - Constructor for class nl.captcha.noise.StraightLineNoiseProducer

Default constructor creates a 4-pixel wide red line.

StraightLineNoiseProducer(Color, int) - Constructor for class nl.captcha.noise.StraightLineNoiseProducer

StretchGimpyRenderer - Class in nl.captcha.gimpy

Stretch the given image over the X and Y axes.

StretchGimpyRenderer() - Constructor for class nl.captcha.gimpy.StretchGimpyRenderer

StretchGimpyRenderer(double, double) - Constructor for class nl.captcha.gimpy.StretchGimpyRenderer

StretchyWordRenderer - Class in nl.captcha.text.renderer

StretchyWordRenderer() - Constructor for class nl.captcha.text.renderer.StretchyWordRenderer

T

TextProducer - Interface in nl.captcha.text.producer

Generate an answer for the CAPTCHA.

toString() - Method in class nl.captcha.audio.AudioCaptcha.Builder

toString() - Method in class nl.captcha.audio.AudioCaptcha

toString() - Method in class nl.captcha.audio.noise.RandomNoiseProducer

toString() - Method in class nl.captcha.audio.Sample

toString() - Method in class nl.captcha.Captcha.Builder

toString() - Method in class nl.captcha.Captcha

TransparentBackgroundProducer - Class in nl.captcha.backgrounds

Generates a transparent background.

TransparentBackgroundProducer() - Constructor for class nl.captcha.backgrounds.TransparentBackgroundProducer

V

VoiceProducer - Interface in nl.captcha.audio.producer

Generates a vocalization for a single character.

W

WordRenderer - Interface in nl.captcha.text.renderer

Render the answer for the CAPTCHA onto the image.

writeAudio(HttpServletResponse, Sample) - Static method in class nl.captcha.servlet.CaptchaServletUtil

writeImage(HttpServletResponse, BufferedImage) - Static method in class nl.captcha.servlet.CaptchaServletUtil

writeImage(OutputStream, BufferedImage) - Static method in class nl.captcha.servlet.CaptchaServletUtil

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