diff --git a/modules/photo/include/opencv2/photo.hpp b/modules/photo/include/opencv2/photo.hpp
index 487b720fe0..8cd1971899 100644
--- a/modules/photo/include/opencv2/photo.hpp
+++ b/modules/photo/include/opencv2/photo.hpp
@@ -502,7 +502,7 @@ class CV_EXPORTS_W AlignMTB : public AlignExposures
 {
 public:
     CV_WRAP virtual void process(InputArrayOfArrays src, std::vector<Mat>& dst,
-                                 InputArray times, InputArray response) = 0;
+                                 InputArray times, InputArray response) CV_OVERRIDE = 0;
 
     /** @brief Short version of process, that doesn't take extra arguments.
 
@@ -646,7 +646,7 @@ class CV_EXPORTS_W MergeDebevec : public MergeExposures
 {
 public:
     CV_WRAP virtual void process(InputArrayOfArrays src, OutputArray dst,
-                                 InputArray times, InputArray response) = 0;
+                                 InputArray times, InputArray response) CV_OVERRIDE = 0;
     CV_WRAP virtual void process(InputArrayOfArrays src, OutputArray dst, InputArray times) = 0;
 };
 
@@ -669,7 +669,7 @@ class CV_EXPORTS_W MergeMertens : public MergeExposures
 {
 public:
     CV_WRAP virtual void process(InputArrayOfArrays src, OutputArray dst,
-                                 InputArray times, InputArray response) = 0;
+                                 InputArray times, InputArray response) CV_OVERRIDE = 0;
     /** @brief Short version of process, that doesn't take extra arguments.
 
     @param src vector of input images
@@ -705,7 +705,7 @@ class CV_EXPORTS_W MergeRobertson : public MergeExposures
 {
 public:
     CV_WRAP virtual void process(InputArrayOfArrays src, OutputArray dst,
-                                 InputArray times, InputArray response) = 0;
+                                 InputArray times, InputArray response) CV_OVERRIDE = 0;
     CV_WRAP virtual void process(InputArrayOfArrays src, OutputArray dst, InputArray times) = 0;
 };
 
diff --git a/modules/photo/src/align.cpp b/modules/photo/src/align.cpp
index 02087117e1..cfb8a5d84b 100644
--- a/modules/photo/src/align.cpp
+++ b/modules/photo/src/align.cpp
@@ -47,7 +47,7 @@
 namespace cv
 {
 
-class AlignMTBImpl : public AlignMTB
+class AlignMTBImpl CV_FINAL : public AlignMTB
 {
 public:
     AlignMTBImpl(int _max_bits, int _exclude_range, bool _cut) :
@@ -59,14 +59,14 @@ public:
     }
 
     void process(InputArrayOfArrays src, std::vector<Mat>& dst,
-                 InputArray, InputArray)
+                 InputArray, InputArray) CV_OVERRIDE
     {
         CV_INSTRUMENT_REGION()
 
         process(src, dst);
     }
 
-    void process(InputArrayOfArrays _src, std::vector<Mat>& dst)
+    void process(InputArrayOfArrays _src, std::vector<Mat>& dst) CV_OVERRIDE
     {
         CV_INSTRUMENT_REGION()
 
@@ -116,7 +116,7 @@ public:
         }
     }
 
-    Point calculateShift(InputArray _img0, InputArray _img1)
+    Point calculateShift(InputArray _img0, InputArray _img1) CV_OVERRIDE
     {
         CV_INSTRUMENT_REGION()
 
@@ -164,7 +164,7 @@ public:
         return shift;
     }
 
-    void shiftMat(InputArray _src, OutputArray _dst, const Point shift)
+    void shiftMat(InputArray _src, OutputArray _dst, const Point shift) CV_OVERRIDE
     {
         CV_INSTRUMENT_REGION()
 
@@ -181,16 +181,16 @@ public:
         res.copyTo(dst);
     }
 
-    int getMaxBits() const { return max_bits; }
-    void setMaxBits(int val) { max_bits = val; }
+    int getMaxBits() const CV_OVERRIDE { return max_bits; }
+    void setMaxBits(int val) CV_OVERRIDE { max_bits = val; }
 
-    int getExcludeRange() const { return exclude_range; }
-    void setExcludeRange(int val) { exclude_range = val; }
+    int getExcludeRange() const CV_OVERRIDE { return exclude_range; }
+    void setExcludeRange(int val) CV_OVERRIDE { exclude_range = val; }
 
-    bool getCut() const { return cut; }
-    void setCut(bool val) { cut = val; }
+    bool getCut() const CV_OVERRIDE { return cut; }
+    void setCut(bool val) CV_OVERRIDE { cut = val; }
 
-    void write(FileStorage& fs) const
+    void write(FileStorage& fs) const CV_OVERRIDE
     {
         writeFormat(fs);
         fs << "name" << name
@@ -199,7 +199,7 @@ public:
            << "cut" << static_cast<int>(cut);
     }
 
-    void read(const FileNode& fn)
+    void read(const FileNode& fn) CV_OVERRIDE
     {
         FileNode n = fn["name"];
         CV_Assert(n.isString() && String(n) == name);
@@ -209,7 +209,7 @@ public:
         cut = (cut_val != 0);
     }
 
-    void computeBitmaps(InputArray _img, OutputArray _tb, OutputArray _eb)
+    void computeBitmaps(InputArray _img, OutputArray _tb, OutputArray _eb) CV_OVERRIDE
     {
         CV_INSTRUMENT_REGION()
 
diff --git a/modules/photo/src/calibrate.cpp b/modules/photo/src/calibrate.cpp
index a17f138bd3..088cfbb6e0 100644
--- a/modules/photo/src/calibrate.cpp
+++ b/modules/photo/src/calibrate.cpp
@@ -48,7 +48,7 @@
 namespace cv
 {
 
-class CalibrateDebevecImpl : public CalibrateDebevec
+class CalibrateDebevecImpl CV_FINAL : public CalibrateDebevec
 {
 public:
     CalibrateDebevecImpl(int _samples, float _lambda, bool _random) :
@@ -60,7 +60,7 @@ public:
     {
     }
 
-    void process(InputArrayOfArrays src, OutputArray dst, InputArray _times)
+    void process(InputArrayOfArrays src, OutputArray dst, InputArray _times) CV_OVERRIDE
     {
         CV_INSTRUMENT_REGION()
 
@@ -158,16 +158,16 @@ public:
         exp(result, result);
     }
 
-    int getSamples() const { return samples; }
-    void setSamples(int val) { samples = val; }
+    int getSamples() const CV_OVERRIDE { return samples; }
+    void setSamples(int val) CV_OVERRIDE { samples = val; }
 
-    float getLambda() const { return lambda; }
-    void setLambda(float val) { lambda = val; }
+    float getLambda() const CV_OVERRIDE { return lambda; }
+    void setLambda(float val) CV_OVERRIDE { lambda = val; }
 
-    bool getRandom() const { return random; }
-    void setRandom(bool val) { random = val; }
+    bool getRandom() const CV_OVERRIDE { return random; }
+    void setRandom(bool val) CV_OVERRIDE { random = val; }
 
-    void write(FileStorage& fs) const
+    void write(FileStorage& fs) const CV_OVERRIDE
     {
         writeFormat(fs);
         fs << "name" << name
@@ -176,7 +176,7 @@ public:
            << "random" << static_cast<int>(random);
     }
 
-    void read(const FileNode& fn)
+    void read(const FileNode& fn) CV_OVERRIDE
     {
         FileNode n = fn["name"];
         CV_Assert(n.isString() && String(n) == name);
@@ -199,7 +199,7 @@ Ptr<CalibrateDebevec> createCalibrateDebevec(int samples, float lambda, bool ran
     return makePtr<CalibrateDebevecImpl>(samples, lambda, random);
 }
 
-class CalibrateRobertsonImpl : public CalibrateRobertson
+class CalibrateRobertsonImpl CV_FINAL : public CalibrateRobertson
 {
 public:
     CalibrateRobertsonImpl(int _max_iter, float _threshold) :
@@ -210,7 +210,7 @@ public:
     {
     }
 
-    void process(InputArrayOfArrays src, OutputArray dst, InputArray _times)
+    void process(InputArrayOfArrays src, OutputArray dst, InputArray _times) CV_OVERRIDE
     {
         CV_INSTRUMENT_REGION()
 
@@ -272,15 +272,15 @@ public:
         }
     }
 
-    int getMaxIter() const { return max_iter; }
-    void setMaxIter(int val) { max_iter = val; }
+    int getMaxIter() const CV_OVERRIDE { return max_iter; }
+    void setMaxIter(int val) CV_OVERRIDE { max_iter = val; }
 
-    float getThreshold() const { return threshold; }
-    void setThreshold(float val) { threshold = val; }
+    float getThreshold() const CV_OVERRIDE { return threshold; }
+    void setThreshold(float val) CV_OVERRIDE { threshold = val; }
 
-    Mat getRadiance() const { return radiance; }
+    Mat getRadiance() const CV_OVERRIDE { return radiance; }
 
-    void write(FileStorage& fs) const
+    void write(FileStorage& fs) const CV_OVERRIDE
     {
         writeFormat(fs);
         fs << "name" << name
@@ -288,7 +288,7 @@ public:
            << "threshold" << threshold;
     }
 
-    void read(const FileNode& fn)
+    void read(const FileNode& fn) CV_OVERRIDE
     {
         FileNode n = fn["name"];
         CV_Assert(n.isString() && String(n) == name);
diff --git a/modules/photo/src/fast_nlmeans_denoising_invoker.hpp b/modules/photo/src/fast_nlmeans_denoising_invoker.hpp
index b875ebc92d..1c71e107de 100644
--- a/modules/photo/src/fast_nlmeans_denoising_invoker.hpp
+++ b/modules/photo/src/fast_nlmeans_denoising_invoker.hpp
@@ -58,7 +58,7 @@ public:
     FastNlMeansDenoisingInvoker(const Mat& src, Mat& dst,
         int template_window_size, int search_window_size, const float *h);
 
-    void operator() (const Range& range) const;
+    void operator() (const Range& range) const CV_OVERRIDE;
 
 private:
     void operator= (const FastNlMeansDenoisingInvoker&);
diff --git a/modules/photo/src/fast_nlmeans_multi_denoising_invoker.hpp b/modules/photo/src/fast_nlmeans_multi_denoising_invoker.hpp
index 3f13f400d5..4c0c784eec 100644
--- a/modules/photo/src/fast_nlmeans_multi_denoising_invoker.hpp
+++ b/modules/photo/src/fast_nlmeans_multi_denoising_invoker.hpp
@@ -59,7 +59,7 @@ public:
                                      int temporalWindowSize, Mat& dst, int template_window_size,
                                      int search_window_size, const float *h);
 
-    void operator() (const Range& range) const;
+    void operator() (const Range& range) const CV_OVERRIDE;
 
 private:
     void operator= (const FastNlMeansMultiDenoisingInvoker&);
diff --git a/modules/photo/src/merge.cpp b/modules/photo/src/merge.cpp
index d04e7b8acc..77f919c11d 100644
--- a/modules/photo/src/merge.cpp
+++ b/modules/photo/src/merge.cpp
@@ -47,7 +47,7 @@
 namespace cv
 {
 
-class MergeDebevecImpl : public MergeDebevec
+class MergeDebevecImpl CV_FINAL : public MergeDebevec
 {
 public:
     MergeDebevecImpl() :
@@ -56,7 +56,7 @@ public:
     {
     }
 
-    void process(InputArrayOfArrays src, OutputArray dst, InputArray _times, InputArray input_response)
+    void process(InputArrayOfArrays src, OutputArray dst, InputArray _times, InputArray input_response) CV_OVERRIDE
     {
         CV_INSTRUMENT_REGION()
 
@@ -122,7 +122,7 @@ public:
         exp(result, result);
     }
 
-    void process(InputArrayOfArrays src, OutputArray dst, InputArray times)
+    void process(InputArrayOfArrays src, OutputArray dst, InputArray times) CV_OVERRIDE
     {
         CV_INSTRUMENT_REGION()
 
@@ -139,7 +139,7 @@ Ptr<MergeDebevec> createMergeDebevec()
     return makePtr<MergeDebevecImpl>();
 }
 
-class MergeMertensImpl : public MergeMertens
+class MergeMertensImpl CV_FINAL : public MergeMertens
 {
 public:
     MergeMertensImpl(float _wcon, float _wsat, float _wexp) :
@@ -150,14 +150,14 @@ public:
     {
     }
 
-    void process(InputArrayOfArrays src, OutputArrayOfArrays dst, InputArray, InputArray)
+    void process(InputArrayOfArrays src, OutputArrayOfArrays dst, InputArray, InputArray) CV_OVERRIDE
     {
         CV_INSTRUMENT_REGION()
 
         process(src, dst);
     }
 
-    void process(InputArrayOfArrays src, OutputArray dst)
+    void process(InputArrayOfArrays src, OutputArray dst) CV_OVERRIDE
     {
         CV_INSTRUMENT_REGION()
 
@@ -262,16 +262,16 @@ public:
         res_pyr[0].copyTo(dst.getMat());
     }
 
-    float getContrastWeight() const { return wcon; }
-    void setContrastWeight(float val) { wcon = val; }
+    float getContrastWeight() const CV_OVERRIDE { return wcon; }
+    void setContrastWeight(float val) CV_OVERRIDE { wcon = val; }
 
-    float getSaturationWeight() const { return wsat; }
-    void setSaturationWeight(float val) { wsat = val; }
+    float getSaturationWeight() const CV_OVERRIDE { return wsat; }
+    void setSaturationWeight(float val) CV_OVERRIDE { wsat = val; }
 
-    float getExposureWeight() const { return wexp; }
-    void setExposureWeight(float val) { wexp = val; }
+    float getExposureWeight() const CV_OVERRIDE { return wexp; }
+    void setExposureWeight(float val) CV_OVERRIDE { wexp = val; }
 
-    void write(FileStorage& fs) const
+    void write(FileStorage& fs) const CV_OVERRIDE
     {
         writeFormat(fs);
         fs << "name" << name
@@ -280,7 +280,7 @@ public:
            << "exposure_weight" << wexp;
     }
 
-    void read(const FileNode& fn)
+    void read(const FileNode& fn) CV_OVERRIDE
     {
         FileNode n = fn["name"];
         CV_Assert(n.isString() && String(n) == name);
@@ -299,7 +299,7 @@ Ptr<MergeMertens> createMergeMertens(float wcon, float wsat, float wexp)
     return makePtr<MergeMertensImpl>(wcon, wsat, wexp);
 }
 
-class MergeRobertsonImpl : public MergeRobertson
+class MergeRobertsonImpl CV_FINAL : public MergeRobertson
 {
 public:
     MergeRobertsonImpl() :
@@ -308,7 +308,7 @@ public:
     {
     }
 
-    void process(InputArrayOfArrays src, OutputArray dst, InputArray _times, InputArray input_response)
+    void process(InputArrayOfArrays src, OutputArray dst, InputArray _times, InputArray input_response) CV_OVERRIDE
     {
         CV_INSTRUMENT_REGION()
 
@@ -347,7 +347,7 @@ public:
         result = result.mul(1 / wsum);
     }
 
-    void process(InputArrayOfArrays src, OutputArray dst, InputArray times)
+    void process(InputArrayOfArrays src, OutputArray dst, InputArray times) CV_OVERRIDE
     {
         CV_INSTRUMENT_REGION()
 
diff --git a/modules/photo/src/tonemap.cpp b/modules/photo/src/tonemap.cpp
index 4907c1ef12..2911fc55c8 100644
--- a/modules/photo/src/tonemap.cpp
+++ b/modules/photo/src/tonemap.cpp
@@ -53,14 +53,14 @@ inline void log_(const Mat& src, Mat& dst)
     log(dst, dst);
 }
 
-class TonemapImpl : public Tonemap
+class TonemapImpl CV_FINAL : public Tonemap
 {
 public:
     TonemapImpl(float _gamma) : name("Tonemap"), gamma(_gamma)
     {
     }
 
-    void process(InputArray _src, OutputArray _dst)
+    void process(InputArray _src, OutputArray _dst) CV_OVERRIDE
     {
         CV_INSTRUMENT_REGION()
 
@@ -80,17 +80,17 @@ public:
         pow(dst, 1.0f / gamma, dst);
     }
 
-    float getGamma() const { return gamma; }
-    void setGamma(float val) { gamma = val; }
+    float getGamma() const CV_OVERRIDE { return gamma; }
+    void setGamma(float val) CV_OVERRIDE { gamma = val; }
 
-    void write(FileStorage& fs) const
+    void write(FileStorage& fs) const CV_OVERRIDE
     {
         writeFormat(fs);
         fs << "name" << name
            << "gamma" << gamma;
     }
 
-    void read(const FileNode& fn)
+    void read(const FileNode& fn) CV_OVERRIDE
     {
         FileNode n = fn["name"];
         CV_Assert(n.isString() && String(n) == name);
@@ -107,7 +107,7 @@ Ptr<Tonemap> createTonemap(float gamma)
     return makePtr<TonemapImpl>(gamma);
 }
 
-class TonemapDragoImpl : public TonemapDrago
+class TonemapDragoImpl CV_FINAL : public TonemapDrago
 {
 public:
     TonemapDragoImpl(float _gamma, float _saturation, float _bias) :
@@ -118,7 +118,7 @@ public:
     {
     }
 
-    void process(InputArray _src, OutputArray _dst)
+    void process(InputArray _src, OutputArray _dst) CV_OVERRIDE
     {
         CV_INSTRUMENT_REGION()
 
@@ -155,16 +155,16 @@ public:
         linear->process(img, img);
     }
 
-    float getGamma() const { return gamma; }
-    void setGamma(float val) { gamma = val; }
+    float getGamma() const CV_OVERRIDE { return gamma; }
+    void setGamma(float val) CV_OVERRIDE { gamma = val; }
 
-    float getSaturation() const { return saturation; }
-    void setSaturation(float val) { saturation = val; }
+    float getSaturation() const CV_OVERRIDE { return saturation; }
+    void setSaturation(float val) CV_OVERRIDE { saturation = val; }
 
-    float getBias() const { return bias; }
-    void setBias(float val) { bias = val; }
+    float getBias() const CV_OVERRIDE { return bias; }
+    void setBias(float val) CV_OVERRIDE { bias = val; }
 
-    void write(FileStorage& fs) const
+    void write(FileStorage& fs) const CV_OVERRIDE
     {
         writeFormat(fs);
         fs << "name" << name
@@ -173,7 +173,7 @@ public:
            << "saturation" << saturation;
     }
 
-    void read(const FileNode& fn)
+    void read(const FileNode& fn) CV_OVERRIDE
     {
         FileNode n = fn["name"];
         CV_Assert(n.isString() && String(n) == name);
@@ -192,7 +192,7 @@ Ptr<TonemapDrago> createTonemapDrago(float gamma, float saturation, float bias)
     return makePtr<TonemapDragoImpl>(gamma, saturation, bias);
 }
 
-class TonemapDurandImpl : public TonemapDurand
+class TonemapDurandImpl CV_FINAL : public TonemapDurand
 {
 public:
     TonemapDurandImpl(float _gamma, float _contrast, float _saturation, float _sigma_color, float _sigma_space) :
@@ -205,7 +205,7 @@ public:
     {
     }
 
-    void process(InputArray _src, OutputArray _dst)
+    void process(InputArray _src, OutputArray _dst) CV_OVERRIDE
     {
         CV_INSTRUMENT_REGION()
 
@@ -233,22 +233,22 @@ public:
         pow(img, 1.0f / gamma, img);
     }
 
-    float getGamma() const { return gamma; }
-    void setGamma(float val) { gamma = val; }
+    float getGamma() const CV_OVERRIDE { return gamma; }
+    void setGamma(float val) CV_OVERRIDE { gamma = val; }
 
-    float getSaturation() const { return saturation; }
-    void setSaturation(float val) { saturation = val; }
+    float getSaturation() const CV_OVERRIDE { return saturation; }
+    void setSaturation(float val) CV_OVERRIDE { saturation = val; }
 
-    float getContrast() const { return contrast; }
-    void setContrast(float val) { contrast = val; }
+    float getContrast() const CV_OVERRIDE { return contrast; }
+    void setContrast(float val) CV_OVERRIDE { contrast = val; }
 
-    float getSigmaColor() const { return sigma_color; }
-    void setSigmaColor(float val) { sigma_color = val; }
+    float getSigmaColor() const CV_OVERRIDE { return sigma_color; }
+    void setSigmaColor(float val) CV_OVERRIDE { sigma_color = val; }
 
-    float getSigmaSpace() const { return sigma_space; }
-    void setSigmaSpace(float val) { sigma_space = val; }
+    float getSigmaSpace() const CV_OVERRIDE { return sigma_space; }
+    void setSigmaSpace(float val) CV_OVERRIDE { sigma_space = val; }
 
-    void write(FileStorage& fs) const
+    void write(FileStorage& fs) const CV_OVERRIDE
     {
         writeFormat(fs);
         fs << "name" << name
@@ -259,7 +259,7 @@ public:
            << "saturation" << saturation;
     }
 
-    void read(const FileNode& fn)
+    void read(const FileNode& fn) CV_OVERRIDE
     {
         FileNode n = fn["name"];
         CV_Assert(n.isString() && String(n) == name);
@@ -280,7 +280,7 @@ Ptr<TonemapDurand> createTonemapDurand(float gamma, float contrast, float satura
     return makePtr<TonemapDurandImpl>(gamma, contrast, saturation, sigma_color, sigma_space);
 }
 
-class TonemapReinhardImpl : public TonemapReinhard
+class TonemapReinhardImpl CV_FINAL : public TonemapReinhard
 {
 public:
     TonemapReinhardImpl(float _gamma, float _intensity, float _light_adapt, float _color_adapt) :
@@ -292,7 +292,7 @@ public:
     {
     }
 
-    void process(InputArray _src, OutputArray _dst)
+    void process(InputArray _src, OutputArray _dst) CV_OVERRIDE
     {
         CV_INSTRUMENT_REGION()
 
@@ -336,19 +336,19 @@ public:
         linear->process(img, img);
     }
 
-    float getGamma() const { return gamma; }
-    void setGamma(float val) { gamma = val; }
+    float getGamma() const CV_OVERRIDE { return gamma; }
+    void setGamma(float val) CV_OVERRIDE { gamma = val; }
 
-    float getIntensity() const { return intensity; }
-    void setIntensity(float val) { intensity = val; }
+    float getIntensity() const CV_OVERRIDE { return intensity; }
+    void setIntensity(float val) CV_OVERRIDE { intensity = val; }
 
-    float getLightAdaptation() const { return light_adapt; }
-    void setLightAdaptation(float val) { light_adapt = val; }
+    float getLightAdaptation() const CV_OVERRIDE { return light_adapt; }
+    void setLightAdaptation(float val) CV_OVERRIDE { light_adapt = val; }
 
-    float getColorAdaptation() const { return color_adapt; }
-    void setColorAdaptation(float val) { color_adapt = val; }
+    float getColorAdaptation() const CV_OVERRIDE { return color_adapt; }
+    void setColorAdaptation(float val) CV_OVERRIDE { color_adapt = val; }
 
-    void write(FileStorage& fs) const
+    void write(FileStorage& fs) const CV_OVERRIDE
     {
         writeFormat(fs);
         fs << "name" << name
@@ -358,7 +358,7 @@ public:
            << "color_adapt" << color_adapt;
     }
 
-    void read(const FileNode& fn)
+    void read(const FileNode& fn) CV_OVERRIDE
     {
         FileNode n = fn["name"];
         CV_Assert(n.isString() && String(n) == name);
@@ -378,7 +378,7 @@ Ptr<TonemapReinhard> createTonemapReinhard(float gamma, float contrast, float si
     return makePtr<TonemapReinhardImpl>(gamma, contrast, sigma_color, sigma_space);
 }
 
-class TonemapMantiukImpl : public TonemapMantiuk
+class TonemapMantiukImpl CV_FINAL : public TonemapMantiuk
 {
 public:
     TonemapMantiukImpl(float _gamma, float _scale, float _saturation) :
@@ -389,7 +389,7 @@ public:
     {
     }
 
-    void process(InputArray _src, OutputArray _dst)
+    void process(InputArray _src, OutputArray _dst) CV_OVERRIDE
     {
         CV_INSTRUMENT_REGION()
 
@@ -449,16 +449,16 @@ public:
         linear->process(img, img);
     }
 
-    float getGamma() const { return gamma; }
-    void setGamma(float val) { gamma = val; }
+    float getGamma() const CV_OVERRIDE { return gamma; }
+    void setGamma(float val) CV_OVERRIDE { gamma = val; }
 
-    float getScale() const { return scale; }
-    void setScale(float val) { scale = val; }
+    float getScale() const CV_OVERRIDE { return scale; }
+    void setScale(float val) CV_OVERRIDE { scale = val; }
 
-    float getSaturation() const { return saturation; }
-    void setSaturation(float val) { saturation = val; }
+    float getSaturation() const CV_OVERRIDE { return saturation; }
+    void setSaturation(float val) CV_OVERRIDE { saturation = val; }
 
-    void write(FileStorage& fs) const
+    void write(FileStorage& fs) const CV_OVERRIDE
     {
         writeFormat(fs);
         fs << "name" << name
@@ -467,7 +467,7 @@ public:
            << "saturation" << saturation;
     }
 
-    void read(const FileNode& fn)
+    void read(const FileNode& fn) CV_OVERRIDE
     {
         FileNode n = fn["name"];
         CV_Assert(n.isString() && String(n) == name);