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59 lines
1.8 KiB
59 lines
1.8 KiB
/* |
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* Copyright 2016 Nu-book Inc. |
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* Copyright 2016 ZXing authors |
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*/ |
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// SPDX-License-Identifier: Apache-2.0 |
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#pragma once |
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#include "DetectorResult.h" |
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#include "Matrix.h" |
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#include "PerspectiveTransform.h" |
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#include <optional> |
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#include <vector> |
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namespace ZXing { |
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/** |
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* Samples an image for a rectangular matrix of bits of the given dimension. The sampling |
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* transformation is determined by the coordinates of 4 points, in the original and transformed |
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* image space. |
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* |
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* The following figure is showing the layout a 'pixel'. The point (0,0) is the upper left corner |
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* of the first pixel. (1,1) is its lower right corner. |
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* |
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* 0 1 ... w |
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* 0 #----#-- ... --# |
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* | | ... | |
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* | | ... | |
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* 1 #----# ... --# |
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* | | ... | |
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* |
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* | | ... | |
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* h #----#-- ... --# |
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* |
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* @param image image to sample |
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* @param width width of {@link BitMatrix} to sample from image |
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* @param height height of {@link BitMatrix} to sample from image |
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* @param mod2Pix transforming a module (grid) coordinate into an image (pixel) coordinate |
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* @return {@link DetectorResult} representing a grid of points sampled from the image within a region |
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* defined by the "src" parameters. Result is empty if transformation is invalid (out of bound access). |
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*/ |
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DetectorResult SampleGrid(const BitMatrix& image, int width, int height, const PerspectiveTransform& mod2Pix); |
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class ROI |
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{ |
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public: |
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int x0, x1, y0, y1; |
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PerspectiveTransform mod2Pix; |
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}; |
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using ROIs = std::vector<ROI>; |
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DetectorResult SampleGrid(const BitMatrix& image, int width, int height, const ROIs& rois); |
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DetectorResult SampleGrid(const BitMatrix& image, int width, int height, const PerspectiveTransform& mod2Pix, |
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Matrix<std::optional<PointF>>&& apP, const std::vector<int>& apMX, const std::vector<int>& apMY); |
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} // ZXing
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