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GUIMyFrame1.cpp
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GUIMyFrame1.cpp
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#include "GUIMyFrame1.h"
#include <cctype>
#include "CImg.h"
#include <thread>
GUIMyFrame1::GUIMyFrame1(wxWindow* parent)
:
MyFrame1(parent)
{
}
bool check_if_no_digit(const std::string& str)
{
auto iter = std::find_if(str.begin(), str.end(), [](char el) { return !std::isdigit(el); });
return iter != str.end();
}
void GUIMyFrame1::Frame_OnCLose(wxCloseEvent& event)
{
const wxString message = "Are you sure you want to exit?\nAll changes will be lost.";
if (wxMessageDialog(NULL, message, "Warning!", wxOK | wxCANCEL).ShowModal() == wxID_OK)
Destroy();
}
void GUIMyFrame1::OriginalImage_OnUpdateUI(wxUpdateUIEvent& event)
{
// TODO: Implement OriginalImage_OnUpdateUI
wxClientDC dcOrg(OriginalImage);
if(should_refresh)
firstRefresh(dcOrg);
}
void GUIMyFrame1::ValueText_OnTextEnter(wxCommandEvent& event)
{
value_check();
}
//Funkcja obs³uguj¹ca guzik
void GUIMyFrame1::ApplyChanges_OnButtonClick(wxCommandEvent& event)
{
wxClientDC applyDc(ResultImage);
//Poni¿ej przypisujemy do zmiennych w klasie parametry z wszystkich pozosta³ych narzêdzi
selectedOption = Choice->GetSelection();
blurParameter = SetBlur->GetValue();
tresholdParameter = wxAtoi(Value_Text->GetValue());
saturationParameter = SetSaturation->GetValue();
//Wywo³anie funkcji modyfikuj¹cej obraz
modifyImage();
//Odœwie¿amy panel przeznaczony dla kopii obrazu
secondRefresh(applyDc);
}
//Ta funkcja s³uzy do odœwie¿ania panelu z kopi¹ obrazu po jakimkolwiek evencie
void GUIMyFrame1::ResultImage_OnUpdateUI(wxUpdateUIEvent& event)
{
// TODO: Implement ResultImage_OnUpdateUI
value_check();
wxClientDC dcResult(ResultImage);
if (should_refresh)
secondRefresh(dcResult);
}
void GUIMyFrame1::LoadFile(wxCommandEvent& event)
{
wxClientDC dc(OriginalImage); // Tworzymy obiekt DC
//Poni¿ej dodanie handlerów dla kopii i orgina³u
originalPhoto.AddHandler(new wxJPEGHandler);
copyPhoto.AddHandler(new wxJPEGHandler);
//Wywo³anie okna dialogowego
std::shared_ptr<wxFileDialog> window(new wxFileDialog(this, _("Choose a file"), _(""), _(""), "JPEG files (*.jpg)|*.jpg", wxFD_OPEN));
//Warunek czy okienko siê poprawnie wyœwietli³o
if (window->ShowModal() == wxID_OK) {
//Je¿eli wyst¹pi³y problemy z wywo³aniem zdjêcia wyœwietlamy error
if (!originalPhoto.LoadFile(window->GetPath(), wxBITMAP_TYPE_JPEG)) {
wxLogError(_("Can't open a file!")); //w pliku GUI.h jest specjalny include
}
else {
OriginalImage->Enable(true); //zabezpieczenie przed zapisaniem pustego zdjêcia
copyPhoto = originalPhoto; //Kopiujemy orgina³
should_refresh = true; //zmienna pomocnicza, okreœlaj¹ca czy powinniœmy rozpocz¹æ odœwie¿anie (umo¿liwiaj¹ce zmianê wielkoœci zdjêcia przy rozci¹ganiu
//okienka)
}
}
firstRefresh(dc); //Odœwie¿amy panel z orgina³em
}
//Zapisanie pliku
void GUIMyFrame1::SaveFile(wxCommandEvent& event)
{
//Poni¿ej sprawdzamy warunek, czy cokolwiek znajduje siê w panelu zdjêcia wynikowego. Panel jest odblokowany je¿eli coœ tam jest
if (ResultImage->IsEnabled()) {
//Ponownie tworzymy odpowiednie okno dialogowe
std::shared_ptr<wxFileDialog> window(new wxFileDialog(this, _("Save file"), _(""), _(""), "JPEG files (*.jpg)|*.jpg", wxFD_SAVE));
if (window->ShowModal() == wxID_OK) {
//Jak siê nie uda zapisaæ wyskakuje error
if (!copyPhoto.SaveFile(window->GetPath(), wxBITMAP_TYPE_JPEG)) {
wxLogError(_("Can't save an image!"));
}
}
}
//Wypisujemy error, ¿e panel jest pusty
else {
wxLogError(_("Can't save an empty image!"));
}
}
void GUIMyFrame1::AboutProject(wxCommandEvent& event)
{
wxString about = "Selective Image Desaturation\n";
about += "Computer Graphics Project\nMade by:\n";
about += "Mateusz Barnacki\nWojciech Gomu\u0142ka\nBartosz Rogowski\n";
about += "----------------------\n";
about += "WFiIS IS AGH\n2020";
about += "\n\nAll rights reserved.";
wxMessageDialog(NULL, about, "About", wxOK).ShowModal();
}
//Poni¿ej dwie funkcje do odœwie¿ania paneli, u¿ycie bufferDC gwarantuje brak jakichkolwiek "przyciêæ" na zdjêciach w
//trakcie ruszania myszk¹ lub innych czynnoœci
void GUIMyFrame1::firstRefresh(wxClientDC &dc)
{
wxBufferedDC buffer(&dc);
wxImage *temp;
temp = new wxImage(originalPhoto);
if (temp->IsOk()) {
temp->Rescale(dc.GetSize().x, dc.GetSize().y);
wxBitmap bitmap(*temp);
buffer.DrawBitmap(bitmap, 0, 0);
}
delete temp;
}
void GUIMyFrame1::secondRefresh(wxClientDC &dc)
{
wxBufferedDC buffer(&dc);
wxImage *temp;
temp = new wxImage(copyPhoto);
if (temp->IsOk()) {
temp->Rescale(dc.GetSize().x, dc.GetSize().y);
wxBitmap bitmap(*temp);
buffer.DrawBitmap(bitmap, 0, 0);
}
delete temp;
}
void GUIMyFrame1::value_check()
{
if (Value_Text->GetValue().empty())
{
Validation_Text->SetLabel("Error! This field \ncannot be empty");
ApplyChanges->Enable(false);
return;
}
std::string val = Value_Text->GetValue().ToStdString();
if (!check_if_no_digit(val))
{
try
{
int value = std::stoi(val);
std::string choice_value = Choice->GetString(Choice->GetSelection()).ToStdString();
if (choice_value != "Hue" && (value < 0 || value>255)) // Z mojej strony drobna uwaga, parametr Hue jest z przedzia³u [0, 360)
{
Validation_Text->SetLabel("Your input should be\nbetween 0 and 255!");
ApplyChanges->Enable(false);
}
else if (choice_value == "Hue" && (value < 0 || value >= 360))
{
Validation_Text->SetLabel("Hue should be \nin range of [0, 360)!");
ApplyChanges->Enable(false);
}
else
{
Validation_Text->SetLabel("Your input is correct!");
ApplyChanges->Enable();
}
}
catch (const std::invalid_argument&)
{
Validation_Text->SetLabel("Error! Invalid input.");
ApplyChanges->Enable(false);
}
catch (const std::out_of_range&)
{
Validation_Text->SetLabel("Error! Value\nout of range.");
ApplyChanges->Enable(false);
}
catch (const std::exception&)
{
Validation_Text->SetLabel("Error! Unhandled\nexeption occured.");
ApplyChanges->Enable(false);
}
}
else
{
Validation_Text->SetLabel("Error! Input contains\nno-digit symbols!");
ApplyChanges->Enable(false);
}
}
//Drugi Gauss z wiêkszym filtrem
void GUIMyFrame1::useGaussian2(int width_start, int width_end, int width, int height, unsigned char* org, unsigned char* copy) {
int x, y, tempR, tempG, tempB, temp;
//Poni¿ej filtr 5x5. Zastosowa³em wersjê œrodkow¹, wg mnie mocniejszy za bardzo rozmacuje obraz, mo¿na ew zmieniæ wartoœci na s³abszy
std::array<unsigned char, 25> mask{ 0, 1, 2, 1, 0,
1, 4, 8, 4, 1,
2, 8, 16, 8, 2,
1, 4, 8, 4, 1,
0, 1, 2, 1, 0 };
int allWeights = std::accumulate(mask.begin(), mask.end(), 0);
for (x = width_start; x < width_end; ++x) {
for (y = 2; y < height - 2; ++y) {
for (unsigned char c = 0; c < 3; ++c) {
temp = (mask.at(0) * copy[(y - 2)*width * 3 + (x - 2) * 3 + c]) + (mask.at(1) * copy[(y - 2)*width * 3 + (x - 1) * 3 + c]) + (mask.at(2) * copy[(y - 2)*width * 3 + x * 3 + c]) + (mask.at(3) * copy[(y - 2)*width * 3 + (x + 1) * 3 + c]) + (mask.at(4) * copy[(y - 2)*width * 3 + (x + 2) * 3 + c])
+ (mask.at(5) * copy[(y - 1)*width * 3 + (x - 2) * 3 + c]) + (mask.at(6) * copy[(y - 1)*width * 3 + (x - 1) * 3 + c]) + (mask.at(7) * copy[(y - 1)*width * 3 + x * 3 + c]) + (mask.at(8) * copy[(y - 1)*width * 3 + (x + 1) * 3 + c]) + (mask.at(9) * copy[(y - 1)*width * 3 + (x + 2) * 3 + c])
+ (mask.at(10) * copy[y*width * 3 + (x - 2) * 3 + c]) + (mask.at(11) * copy[y*width * 3 + (x - 1) * 3 + c]) + (mask.at(12) * copy[y*width * 3 + x * 3 + c]) + (mask.at(13) * copy[y*width * 3 + (x + 1) * 3 + c]) + (mask.at(14) * copy[y*width * 3 + (x + 2) * 3 + c])
+ (mask.at(15) * copy[(y + 1)*width * 3 + (x - 2) * 3 + c]) + (mask.at(16) * copy[(y + 1)*width * 3 + (x - 1) * 3 + c]) + (mask.at(17) * copy[(y + 1)*width * 3 + x * 3 + c]) + (mask.at(18) * copy[(y + 1)*width * 3 + (x + 1) * 3 + c]) + (mask.at(19) * copy[(y + 1)*width * 3 + (x + 2) * 3 + c])
+ (mask.at(20) * copy[(y + 2)*width * 3 + (x - 2) * 3 + c]) + (mask.at(21) * copy[(y + 2)*width * 3 + (x - 1) * 3 + c]) + (mask.at(22) * copy[(y + 2)*width * 3 + x * 3 + c]) + (mask.at(23) * copy[(y + 2)*width * 3 + (x + 1) * 3 + c]) + (mask.at(24) * copy[(y + 2)*width * 3 + (x + 2) * 3 + c]);
temp = temp / allWeights;
if (c == 0) {
tempR = temp;
}
else if (c == 1) {
tempG = temp;
}
else {
tempB = temp;
}
}
org[(y*width + x) * 3] = tempR;
org[(y*width + x) * 3 + 1] = tempG;
org[(y*width + x) * 3 + 2] = tempB;
}
}
}
void GUIMyFrame1::useGaussian2WithThreads(wxImage& object, int width, int height, int howManyThreads)
{
wxImage* image;
image = new wxImage(object.Copy());
unsigned char* org = object.GetData();
unsigned char* copy = image->GetData();
std::vector<std::thread> threads;
int thread_offset = (width - 4) / 4;
int startArr = 2;
int endArr = startArr + thread_offset;
for (int i = 0; i < howManyThreads; ++i)
{
//https://stackoverflow.com/a/50654520
threads.push_back(std::thread{ &GUIMyFrame1::useGaussian2, this, startArr, endArr, width, height, org, copy });
startArr += thread_offset;
endArr += thread_offset;
}
for (auto& thread : threads)
thread.join();
object = *image;
org = nullptr;
copy = nullptr;
delete copy;
delete org;
delete image;
}
//Funkcja modyfikuj¹ca obraz
void GUIMyFrame1::modifyImage() {
//Uaktywniamy panel kopii, poniewa¿ ju¿ jesteœmy pewni ¿e coœ tam bêdzie
if (ResultImage->IsEnabled() == false) {
ResultImage->Enable(true);
}
int height = originalPhoto.GetHeight();
int width = originalPhoto.GetWidth();
int temp = 0;
int min = 0;
int max = 0;
int tempR = 0;
int tempG = 0;
int tempB = 0;
int delta = 0;
wxImage *tempImage;
tempImage = new wxImage(originalPhoto.Copy());
unsigned char *image = originalPhoto.GetData();
unsigned char *copy = tempImage->GetData();
int x, y;
//Poni¿ej dla opcji bez konwersji na CMY
if ((selectedOption >= 0) && (selectedOption < 5)) {
for (int iter = 0; iter < width * height * 3; iter += 3)
{
//Przypisujemy wyznaczon¹ wartoœæ dla odpowiedniej opcji
if (selectedOption == 0)
temp = calculateLighteness(image[iter], image[iter + 1], image[iter + 2]);
else if (selectedOption == 1)
temp = calculateHue(image[iter], image[iter + 1], image[iter + 2]);
else if (selectedOption == 2)
temp = static_cast<int>(image[iter]);
else if (selectedOption == 3)
temp = static_cast<int>(image[iter + 1]);
else if (selectedOption == 4)
temp = static_cast<int>(image[iter + 2]);
//Sprawdzamy czy wartoœæ jest mniejsza ni¿ obszar 'przejœcia'
if (temp < (tresholdParameter - blurParameter)) {
//Wyznaczamy max z RGB
max = findMax(image[iter], image[iter + 1], image[iter + 2]);
if (max < 0) {
max = 0;
}
//Dokonujemy czêœciowej desaturacji zale¿nie od parametru saturationParameter
partlyDesaturation(copy[iter], copy[iter + 1], copy[iter + 2], max, saturationParameter);
}
//Je¿eli piksel znajduje siê w obszarze przejœciowym
else if ((temp > tresholdParameter - blurParameter) && (temp < tresholdParameter)) {
delta = tresholdParameter - temp; // Obliczamy o ile ró¿ni siê od progu
max = findMax(image[iter], image[iter + 1], image[iter + 2]);
//Funkcja która ma imitowaæ rozmycie
blurDesaturation(copy[iter], copy[iter + 1], copy[iter + 2], max, saturationParameter, blurParameter, delta);
}
}
}
//Opcje wymagaj¹ce konwersji na CMY za pomoc¹ CImg
else {
//Utworzenie zwyczajnych zmiennych (analogiczne do wxImage)
//cimg_library::CImg<unsigned char> object(width, height, 1, 3);
cimg_library::CImg<unsigned char> result(width, height, 1, 3);
//W poni¿szej pêtli przypisujemy odpowiednie wartoœci do poszczególnych pikseli odpowiednio (x,y,0) = R itd...
for (x = 0; x < width; ++x) {
for (y = 0; y < height; ++y) {
result(x, y, 0) = image[(y*width + x) * 3];
result(x, y, 1) = image[(y*width + x) * 3 + 1];
result(x, y, 2) = image[(y*width + x) * 3 + 2];
}
}
//W zmiennej result przechowujemy obraz po dokonaniu konwersji na CMY
result.RGBtoCMY();
for (x = 0; x < width; ++x) {
for (y = 0; y < height; ++y) {
//Sprawdzamy która opcja z CMY zosta³a wybrana
if (selectedOption == 5) {
temp = result(x, y, 0);
}
else if (selectedOption == 6) {
temp = result(x, y, 1);
}
else if (selectedOption == 7) {
temp = result(x, y, 2);
}
//Analogicznie jak dla RGB sprawdzamy poni¿ej, czy coœ jest w pe³ni desaturowane czy jest w obszarze przejœciowym
if (temp < (tresholdParameter - blurParameter)) {
max = findMax(result(x, y, 0), result(x, y, 1), result(x, y, 2));
if (max < 0) {
max = 0;
}
partlyDesaturation(result(x, y, 0), result(x, y, 1), result(x, y, 2), max, saturationParameter);
}
else if ((temp > tresholdParameter - blurParameter) && (temp < tresholdParameter)) {
delta = tresholdParameter - temp;
delta = saturationParameter + delta;
if (delta > 100) {
delta = 100;
}
max = findMax(result(x, y, 0), result(x, y, 1), result(x, y, 2));
//partlyDesaturation(result(x, y, 0), result(x, y, 1), result(x, y, 2), max, delta);
blurDesaturation(result(x, y, 0), result(x, y, 1), result(x, y, 2), max, saturationParameter, blurParameter, delta);
}
}
}
result.CMYtoRGB();
//Zapisanie wyników w obiekcie wxImage
for (x = 0; x < width; ++x) {
for (y = 0; y < height; ++y) {
copy[(y*width + x) * 3] = result(x, y, 0);
copy[(y*width + x) * 3 + 1] = result(x, y, 1);
copy[(y*width + x) * 3 + 2] = result(x, y, 2);
}
}
}
copyPhoto = *tempImage;
image = nullptr;
copy = nullptr;
delete image;
delete copy;
delete tempImage;
useGaussian2WithThreads(copyPhoto, width, height, 1);
}