A B C D F G I M N R S T V W

A

AbstractBackground - Class in ml.miron.captcha.image.background

Abstract implementation of Background.

AbstractBackground() - Constructor for class ml.miron.captcha.image.background.AbstractBackground

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

Add answer to the captcha using the NumbersAnswerProducer.

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

Add answer to the captcha using the given TextProducer.

addBackground(BufferedImage) - Method in class ml.miron.captcha.image.background.AbstractBackground

addBackground(BufferedImage) - Method in interface ml.miron.captcha.image.background.Background

Add the background to the given image.

addBackground() - Method in class ml.miron.captcha.image.Captcha.Builder

Add a background using the default TransparentBackground.

addBackground(Background) - Method in class ml.miron.captcha.image.Captcha.Builder

Add a background using the given Background.

addBorder() - Method in class ml.miron.captcha.image.Captcha.Builder

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

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

Add noise using the default RandomNoiseProducer.

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

Add voice using the given NoiseProducer.

addNoise(List<Sample>) - Method in interface ml.miron.captcha.audio.producer.NoiseProducer

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

addNoise(List<Sample>) - Method in class ml.miron.captcha.audio.producer.RandomNoiseProducer

addNoise() - Method in class ml.miron.captcha.image.Captcha.Builder

Add noise using the default CurvedLineNoiseProducer.

addNoise(NoiseProducer) - Method in class ml.miron.captcha.image.Captcha.Builder

Add noise using the given NoiseProducer.

addText(WordRenderer) - Method in class ml.miron.captcha.image.Captcha.Builder

Add answer to the captcha with specified instance of WordRenderer.

addText() - Method in class ml.miron.captcha.image.Captcha.Builder

Add answer to the captcha using the DefaultTextProducer.

addText(TextProducer) - Method in class ml.miron.captcha.image.Captcha.Builder

ADd answer to the captcha using the given TextProducer.

addText(TextProducer, WordRenderer) - Method in class ml.miron.captcha.image.Captcha.Builder

ADd answer to the captcha using the given TextProducer, and render it to the image using the given WordRenderer.

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

Add voice using the default NumberVoiceProducer.

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

Add voice using the given VoiceProducer.

append(List<Sample>) - Static method in class ml.miron.captcha.util.MixerUtil

Glues samples together.

asByteArray() - Method in class ml.miron.captcha.audio.Sample

Return the interleaved samples as a byte[].

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

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

AudioCaptcha - Class in ml.miron.captcha.audio

A builder for generating a CAPTCHA audio/answer pair.

AudioCaptcha.Builder - Class in ml.miron.captcha.audio

Captcha class builder.

AudioCaptchaServlet - Class in ml.miron.captcha.servlet

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

AudioCaptchaServlet() - Constructor for class ml.miron.captcha.servlet.AudioCaptchaServlet

B

Background - Interface in ml.miron.captcha.image.background

Base interface for background.

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

Builds the captcha.

build() - Method in class ml.miron.captcha.image.Captcha.Builder

Builds the captcha.

Builder() - Constructor for class ml.miron.captcha.audio.AudioCaptcha.Builder

Creates a AudioCaptcha.Builder with empty voice and noise lists.

Builder(int, int) - Constructor for class ml.miron.captcha.image.Captcha.Builder

Creates a Captcha.Builder with specified width and height.

C

Captcha - Class in ml.miron.captcha.image

A builder for generating a captcha image/answer pair.

Captcha.Builder - Class in ml.miron.captcha.image

Captcha class builder.

CAPTCHA_ATTRIBUTE - Static variable in class ml.miron.captcha.util.CaptchaServletUtil

CaptchaServlet - Class in ml.miron.captcha.servlet

Generates a new Captcha and writes the image to the response.

CaptchaServlet() - Constructor for class ml.miron.captcha.servlet.CaptchaServlet

CaptchaServletUtil - Class in ml.miron.captcha.util

Helper class for operating with HttpServletResponse and image/audio resources.

ColoredEdgesWordRenderer - Class in ml.miron.captcha.image.renderer

Implementation of WordRenderer.

ColoredEdgesWordRenderer() - Constructor for class ml.miron.captcha.image.renderer.ColoredEdgesWordRenderer

Creates a ColoredEdgesWordRenderer with default color (black), font (Arial) and stroke width (1).

ColoredEdgesWordRenderer(List<Color>, List<Font>) - Constructor for class ml.miron.captcha.image.renderer.ColoredEdgesWordRenderer

Creates a ColoredEdgesWordRenderer with specified colors and fonts, and default stroke width (1).

ColoredEdgesWordRenderer(List<Color>, List<Font>, float) - Constructor for class ml.miron.captcha.image.renderer.ColoredEdgesWordRenderer

Creates a ColoredEdgesWordRenderer with specified colors, fonts and stroke width.

CurvedLineNoiseProducer - Class in ml.miron.captcha.image.producer

Adds a randomly curved line to the image.

CurvedLineNoiseProducer() - Constructor for class ml.miron.captcha.image.producer.CurvedLineNoiseProducer

Creates a CurvedLineNoiseProducer with default color and width.

CurvedLineNoiseProducer(Color, float) - Constructor for class ml.miron.captcha.image.producer.CurvedLineNoiseProducer

Creates a CurvedLineNoiseProducer with specified color and width.

D

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

Decodes bytes of audioBytes into audioSamples.

DefaultTextProducer - Class in ml.miron.captcha.image.producer

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

DefaultTextProducer() - Constructor for class ml.miron.captcha.image.producer.DefaultTextProducer

Creates a DefaultTextProducer with default length and random characters.

DefaultTextProducer(int) - Constructor for class ml.miron.captcha.image.producer.DefaultTextProducer

Creates a DefaultTextProducer with random characters and specified length.

DefaultTextProducer(int, char[]) - Constructor for class ml.miron.captcha.image.producer.DefaultTextProducer

Creates a DefaultTextProducer with specified length and characters.

DefaultTextProducer(String) - Constructor for class ml.miron.captcha.image.producer.DefaultTextProducer

Creates a DefaultTextProducer with specified text.

DefaultWordRenderer - Class in ml.miron.captcha.image.renderer

Default implementation of WordRenderer.

DefaultWordRenderer() - Constructor for class ml.miron.captcha.image.renderer.DefaultWordRenderer

Creates a DefaultWordRenderer with default color (black) and fonts (Arial and Courier).

DefaultWordRenderer(List<Color>, List<Font>) - Constructor for class ml.miron.captcha.image.renderer.DefaultWordRenderer

Creates a DefaultWordRenderer with specified colors and fonts.

destroy() - Method in class ml.miron.captcha.servlet.RefreshCaptchaFilter

doFilter(ServletRequest, ServletResponse, FilterChain) - Method in class ml.miron.captcha.servlet.RefreshCaptchaFilter

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

doGet(HttpServletRequest, HttpServletResponse) - Method in class ml.miron.captcha.servlet.CaptchaServlet

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

F

FileUtil - Class in ml.miron.captcha.util

Utility class for operating with files.

FishEyeRenderer - Class in ml.miron.captcha.image.renderer

Overlays a warped grid to the image.

FishEyeRenderer() - Constructor for class ml.miron.captcha.image.renderer.FishEyeRenderer

Creates a warped grid with default black colors.

FishEyeRenderer(Color, Color) - Constructor for class ml.miron.captcha.image.renderer.FishEyeRenderer

Creates a warped grid with specified colors.

G

getAnswer() - Method in class ml.miron.captcha.audio.AudioCaptcha

Returns the answer for captcha.

getAnswer() - Method in class ml.miron.captcha.image.Captcha

Returns the answer for captcha.

getAudioInputStream() - Method in class ml.miron.captcha.audio.Sample

Returns audio stream.

getBackground(int, int) - Method in interface ml.miron.captcha.image.background.Background

Returns the background by the given width and height.

getBackground(int, int) - Method in class ml.miron.captcha.image.background.GradiatedBackground

getBackground(int, int) - Method in class ml.miron.captcha.image.background.TransparentBackground

getChallenge() - Method in class ml.miron.captcha.audio.AudioCaptcha

Returns the audio sample of captcha.

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

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

getFormat() - Method in class ml.miron.captcha.audio.Sample

Returns the current format audio.

getImage() - Method in class ml.miron.captcha.image.Captcha

Get the PNG captcha image.

getInterleavedSamples() - Method in class ml.miron.captcha.audio.Sample

Returns the array of interleaved samples.

getInterleavedSamples(long, long, double[]) - Method in class ml.miron.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.

getSampleCount() - Method in class ml.miron.captcha.audio.Sample

Return the number of samples of all channels.

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

Convenience method.

getText() - Method in class ml.miron.captcha.image.producer.DefaultTextProducer

getText() - Method in class ml.miron.captcha.image.producer.NumbersAnswerProducer

getText() - Method in interface ml.miron.captcha.image.producer.TextProducer

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

getVocalization(char) - Method in class ml.miron.captcha.audio.producer.NumberVoiceProducer

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

Returns the audio sample for the given single character.

gimp() - Method in class ml.miron.captcha.image.Captcha.Builder

Gimp the image using the default FishEyeRenderer.

gimp(Renderer) - Method in class ml.miron.captcha.image.Captcha.Builder

Gimp the image using the given Renderer.

gimp(BufferedImage) - Method in class ml.miron.captcha.image.renderer.FishEyeRenderer

gimp(BufferedImage) - Method in interface ml.miron.captcha.image.renderer.Renderer

Draws the graphic image based on the defined BufferedImage.

GradiatedBackground - Class in ml.miron.captcha.image.background

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

GradiatedBackground() - Constructor for class ml.miron.captcha.image.background.GradiatedBackground

Creates a gradiated background with defaults colors: from dark gray to white.

GradiatedBackground(Color, Color) - Constructor for class ml.miron.captcha.image.background.GradiatedBackground

Creates a gradiated background with specified from and to colors.

I

init() - Method in class ml.miron.captcha.servlet.AudioCaptchaServlet

init() - Method in class ml.miron.captcha.servlet.CaptchaServlet

init(FilterConfig) - Method in class ml.miron.captcha.servlet.RefreshCaptchaFilter

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

Returns true if specified answer if correct, otherwise false.

isCorrect(String) - Method in class ml.miron.captcha.image.Captcha

Returns true if specified answer if correct, otherwise false.

M

makeNoise(BufferedImage) - Method in class ml.miron.captcha.image.producer.CurvedLineNoiseProducer

makeNoise(BufferedImage) - Method in interface ml.miron.captcha.image.producer.NoiseProducer

Adds noise to the specified image.

mix(Sample, double, Sample, double) - Static method in class ml.miron.captcha.util.MixerUtil

Mixes two specified samples.

MixerUtil - Class in ml.miron.captcha.util

Helper class for operating with Sample.

ml.miron.captcha.audio - package ml.miron.captcha.audio

ml.miron.captcha.audio.producer - package ml.miron.captcha.audio.producer

ml.miron.captcha.image - package ml.miron.captcha.image

ml.miron.captcha.image.background - package ml.miron.captcha.image.background

ml.miron.captcha.image.producer - package ml.miron.captcha.image.producer

ml.miron.captcha.image.renderer - package ml.miron.captcha.image.renderer

ml.miron.captcha.servlet - package ml.miron.captcha.servlet

ml.miron.captcha.util - package ml.miron.captcha.util

N

NoiseProducer - Interface in ml.miron.captcha.audio.producer

Base interface for the audio noise producer.

NoiseProducer - Interface in ml.miron.captcha.image.producer

Base interface for the image noise producer.

NumbersAnswerProducer - Class in ml.miron.captcha.image.producer

TextProducer implementation that will return a series of numbers.

NumbersAnswerProducer() - Constructor for class ml.miron.captcha.image.producer.NumbersAnswerProducer

Creates a NumbersAnswerProducer with default length.

NumbersAnswerProducer(int) - Constructor for class ml.miron.captcha.image.producer.NumbersAnswerProducer

Creates a NumbersAnswerProducer with specified length.

NumbersAnswerProducer(String) - Constructor for class ml.miron.captcha.image.producer.NumbersAnswerProducer

Creates a NumbersAnswerProducer with specified text.

NumberVoiceProducer - Class in ml.miron.captcha.audio.producer

Generates a vocalization for a given number, randomly selecting from a list of voices.

NumberVoiceProducer() - Constructor for class ml.miron.captcha.audio.producer.NumberVoiceProducer

Creates a NumberVoiceProducer for the default set of voices.

NumberVoiceProducer(Map<Integer, String[]>) - Constructor for class ml.miron.captcha.audio.producer.NumberVoiceProducer

Creates a NumberVoiceProducer for the given voices.

R

RandomNoiseProducer - Class in ml.miron.captcha.audio.producer

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

RandomNoiseProducer() - Constructor for class ml.miron.captcha.audio.producer.RandomNoiseProducer

Creates a RandomNoiseProducer from default set of noises.

RandomNoiseProducer(String[]) - Constructor for class ml.miron.captcha.audio.producer.RandomNoiseProducer

Creates a RandomNoiseProducer from one of the given noiseFiles.

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

Gets a file resource and returns it as an InputStream.

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

Returns a audio sample by specified filename.

RefreshCaptchaFilter - Class in ml.miron.captcha.servlet

Removes the captcha attribute from session, thereby resets captcha.

RefreshCaptchaFilter() - Constructor for class ml.miron.captcha.servlet.RefreshCaptchaFilter

render(String, BufferedImage) - Method in class ml.miron.captcha.image.renderer.ColoredEdgesWordRenderer

render(String, BufferedImage) - Method in class ml.miron.captcha.image.renderer.DefaultWordRenderer

render(String, BufferedImage) - Method in interface ml.miron.captcha.image.renderer.WordRenderer

Render a word into a BufferedImage.

Renderer - Interface in ml.miron.captcha.image.renderer

Base interface for the graphic image renderer.

S

Sample - Class in ml.miron.captcha.audio

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

Sample(InputStream) - Constructor for class ml.miron.captcha.audio.Sample

Creates a Sample with defined input stream.

SC_AUDIO_FORMAT - Static variable in class ml.miron.captcha.audio.Sample

T

TextProducer - Interface in ml.miron.captcha.image.producer

Generate an answer for the CAPTCHA.

toString() - Method in class ml.miron.captcha.audio.Sample

TransparentBackground - Class in ml.miron.captcha.image.background

Generates a transparent background.

TransparentBackground() - Constructor for class ml.miron.captcha.image.background.TransparentBackground

V

VoiceProducer - Interface in ml.miron.captcha.audio.producer

Generates a vocalization for a single character.

W

WordRenderer - Interface in ml.miron.captcha.image.renderer

Render the answer for the CAPTCHA into the image.

writeAudio(HttpServletResponse, Sample) - Static method in class ml.miron.captcha.util.CaptchaServletUtil

Writes audio to the response.

writeImage(HttpServletResponse, BufferedImage) - Static method in class ml.miron.captcha.util.CaptchaServletUtil

Writes image to the response.

A B C D F G I M N R S T V W