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Added dof values to layer, pencildef and added to cameraprop-dialog
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,124 @@ | ||
| #ifndef BLURUTILS_H | ||
| #define BLURUTILS_H | ||
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| #include <QtMath> | ||
| #include <vector> | ||
| #include <QRect> | ||
| #include <QDebug> | ||
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| using namespace std; | ||
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| /** Get the nearest distance, where the object will be i "acceptable" focus | ||
| * | ||
| * \param h is the Hyperfocal distance | ||
| * \param s is the focus distance on the camera | ||
| * \param fLength in the cameras focal length, can vary from 25-300 mm (standard is 50 mm) | ||
| * @return | ||
| */ | ||
| inline qreal getDistanceNear(qreal h, qreal s, qreal fLength) | ||
| { | ||
| return (s*(h-fLength))/(h+s-2*fLength); | ||
| } | ||
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| /** Get the farthest distance, where the object will be i "acceptable" focus | ||
| * | ||
| * \param h is the Hyperfocal distance | ||
| * \param s is the focus distance on the camera | ||
| * \param fLength in the cameras focal length, can vary from 25-300 mm (standard is 50 mm) | ||
| * @return | ||
| */ | ||
| inline qreal getDistanceFar(qreal h, qreal s, qreal fLength) | ||
| { | ||
| return (s*(h-fLength))/(h-s); | ||
| } | ||
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| /** Get hyperfocal distance using coc, focal length and f-number. | ||
| * | ||
| * Hyperfoacal distance is a distance beyond which, | ||
| * all objects can be brought into an "acceptable" focus. | ||
| * coc is Circle of confusion (=0.03) | ||
| * \param fLength in the cameras focal length, can vary from 30-300 mm (standard is 50 mm) | ||
| * \param aperture is aperture and can be 2.8 4 5.6 8 11 and 22 | ||
| * \return The cameras hyperfocal distance in mm | ||
| */ | ||
| inline qreal getHyperfocalDistance(qreal fLength, qreal aperture) | ||
| { | ||
| return ((fLength*fLength)/(0.03*aperture)) + fLength; | ||
| } | ||
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| /** | ||
| * @brief boxesForGauss | ||
| * @param sigma | ||
| * @param n | ||
| * @return | ||
| */ | ||
| inline vector<int> boxesForGauss(float sigma, int n) // standard deviation, number of boxes | ||
| { | ||
| auto wIdeal = sqrt((12 * sigma*sigma / n) + 1); // Ideal averaging filter width | ||
| int wl = floor(wIdeal); | ||
| if (wl % 2 == 0) | ||
| wl--; | ||
| int wu = wl + 2; | ||
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| auto mIdeal = (12 * sigma*sigma - n * wl*wl - 4 * n*wl - 3 * n) / (-4 * wl - 4); | ||
| int m = round(mIdeal); | ||
| // var sigmaActual = Math.sqrt( (m*wl*wl + (n-m)*wu*wu - n)/12 ); | ||
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| vector<int> sizes(n); | ||
| for (auto i = 0; i < n; i++) | ||
| sizes[i] = i < m ? wl : wu; | ||
| return sizes; | ||
| } | ||
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| inline void boxBlurH_4(vector<unsigned char>& scl, vector<unsigned char>& tcl, int w, int h, int r) { | ||
| float iarr = 1.f / (r + r + 1); | ||
| for (auto i = 0; i < h; i++) { | ||
| auto ti = i * w, li = ti, ri = ti + r; | ||
| auto fv = scl[ti], lv = scl[ti + w - 1]; | ||
| auto val = (r + 1)*fv; | ||
| for (auto j = 0; j < r; j++) val += scl[ti + j]; | ||
| for (auto j = 0; j <= r; j++) { val += scl[ri++] - fv; tcl[ti++] = round(val*iarr); } | ||
| for (auto j = r + 1; j < w - r; j++) { val += scl[ri++] - scl[li++]; tcl[ti++] = round(val*iarr); } | ||
| for (auto j = w - r; j < w; j++) { val += lv - scl[li++]; tcl[ti++] = round(val*iarr); } | ||
| } | ||
| } | ||
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| inline void boxBlurT_4(vector<unsigned char>& scl, vector<unsigned char>& tcl, int w, int h, int r) { | ||
| float iarr = 1.f / (r + r + 1); | ||
| for (auto i = 0; i < w; i++) { | ||
| auto ti = i, li = ti, ri = ti + r * w; | ||
| auto fv = scl[ti], lv = scl[ti + w * (h - 1)]; | ||
| auto val = (r + 1)*fv; | ||
| for (auto j = 0; j < r; j++) val += scl[ti + j * w]; | ||
| for (auto j = 0; j <= r; j++) { val += scl[ri] - fv; tcl[ti] = round(val*iarr); ri += w; ti += w; } | ||
| for (auto j = r + 1; j < h - r; j++) { val += scl[ri] - scl[li]; tcl[ti] = round(val*iarr); li += w; ri += w; ti += w; } | ||
| for (auto j = h - r; j < h; j++) { val += lv - scl[li]; tcl[ti] = round(val*iarr); li += w; ti += w; } | ||
| } | ||
| } | ||
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| inline void boxBlur_4(vector<unsigned char>& scl, vector<unsigned char>& tcl, int w, int h, int r) { | ||
| for (unsigned i = 0; i < scl.size(); i++) tcl[i] = scl[i]; | ||
| boxBlurH_4(tcl, scl, w, h, r); | ||
| boxBlurT_4(scl, tcl, w, h, r); | ||
| } | ||
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| /** | ||
| * @brief gaussBlur_4 The '4' because it is Algoritm 4 of fast gaussBlur: | ||
| * http://blog.ivank.net/fastest-gaussian-blur.html | ||
| * @param scl Source channel | ||
| * @param tcl Target channel | ||
| * @param w Width | ||
| * @param h Height | ||
| * @param r Radius | ||
| */ | ||
| inline void gaussBlur_4(vector<unsigned char>& scl, vector<unsigned char>& tcl, int w, int h, qreal r) | ||
| { | ||
| auto bxs = boxesForGauss(r, 3); | ||
| qDebug() << "bxs: " << bxs ; | ||
| boxBlur_4(scl, tcl, w, h, (bxs[0] - 1) / 2); | ||
| boxBlur_4(tcl, scl, w, h, (bxs[1] - 1) / 2); | ||
| boxBlur_4(scl, tcl, w, h, (bxs[2] - 1) / 2); | ||
| } | ||
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| #endif // BLURUTILS_H |
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