com.google.zxing.common

类 DefaultGridSampler

java.lang.Object

com.google.zxing.common.GridSampler

com.google.zxing.common.DefaultGridSampler

public final class DefaultGridSampler
extends GridSampler

作者:

Sean Owen

构造器概要

构造器

构造器和说明
DefaultGridSampler()

方法概要

限定符和类型	方法和说明
BitMatrix	sampleGrid(BitMatrix image, int dimensionX, int dimensionY, float p1ToX, float p1ToY, float p2ToX, float p2ToY, float p3ToX, float p3ToY, float p4ToX, float p4ToY, float p1FromX, float p1FromY, float p2FromX, float p2FromY, float p3FromX, float p3FromY, float p4FromX, float p4FromY) Samples an image for a rectangular matrix of bits of the given dimension.
BitMatrix	sampleGrid(BitMatrix image, int dimensionX, int dimensionY, PerspectiveTransform transform)

从类继承的方法 com.google.zxing.common.GridSampler

getInstance, setGridSampler

从类继承的方法 java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

DefaultGridSampler

public DefaultGridSampler()

方法详细资料

sampleGrid

public BitMatrix sampleGrid(BitMatrix image,
                            int dimensionX,
                            int dimensionY,
                            float p1ToX,
                            float p1ToY,
                            float p2ToX,
                            float p2ToY,
                            float p3ToX,
                            float p3ToY,
                            float p4ToX,
                            float p4ToY,
                            float p1FromX,
                            float p1FromY,
                            float p2FromX,
                            float p2FromY,
                            float p3FromX,
                            float p3FromY,
                            float p4FromX,
                            float p4FromY)
                     throws NotFoundException

从类复制的说明: GridSampler

Samples an image for a rectangular matrix of bits of the given dimension. The sampling transformation is determined by the coordinates of 4 points, in the original and transformed image space.

指定者:

sampleGrid 在类中 GridSampler

参数:

image - image to sample

dimensionX - width of BitMatrix to sample from image

dimensionY - height of BitMatrix to sample from image

p1ToX - point 1 preimage X

p1ToY - point 1 preimage Y

p2ToX - point 2 preimage X

p2ToY - point 2 preimage Y

p3ToX - point 3 preimage X

p3ToY - point 3 preimage Y

p4ToX - point 4 preimage X

p4ToY - point 4 preimage Y

p1FromX - point 1 image X

p1FromY - point 1 image Y

p2FromX - point 2 image X

p2FromY - point 2 image Y

p3FromX - point 3 image X

p3FromY - point 3 image Y

p4FromX - point 4 image X

p4FromY - point 4 image Y

返回:

BitMatrix representing a grid of points sampled from the image within a region defined by the "from" parameters

抛出:

NotFoundException - if image can't be sampled, for example, if the transformation defined by the given points is invalid or results in sampling outside the image boundaries

sampleGrid

public BitMatrix sampleGrid(BitMatrix image,
                            int dimensionX,
                            int dimensionY,
                            PerspectiveTransform transform)
                     throws NotFoundException

指定者:

sampleGrid 在类中 GridSampler

抛出:

NotFoundException