def MAT2QImage(self, im, copy=False): """ convert CV MAT to QImage see https://gist.github.com/smex/5287589 """ """ Because OpenCV uses BGR order by default, you should first use cvtColor(src, dst, CV_BGR2RGB) to get an image layout that Qt understands """ im = cv2.cvtColor(im, cv2.COLOR_BGR2RGB) # important! gray_color_table = [qRgb(i, i, i) for i in range(256)] if im is None: return QImage() if im.dtype == np.uint8: if len(im.shape) == 2: qim = QImage(im.data, im.shape[1], im.shape[0], im.strides[0], QImage.Format_Indexed8) qim.setColorTable(gray_color_table) return qim.copy() if copy else qim elif len(im.shape) == 3: if im.shape[2] == 3: qim = QImage(im.data, im.shape[1], im.shape[0], im.strides[0], QImage.Format_RGB888) return qim.copy() if copy else qim elif im.shape[2] == 4: qim = QImage(im.data, im.shape[1], im.shape[0], im.strides[0], QImage.Format_ARGB32) return qim.copy() if copy else qim
def render_html(self, ok): try: if not ok: return cwidth, cheight = self.page.mainFrame().contentsSize().width( ), self.page.mainFrame().contentsSize().height() self.page.setViewportSize(QSize(cwidth, cheight)) factor = float(self.width) / cwidth if cwidth > self.width else 1 cutoff_height = int(self.height / factor) - 3 image = QImage(self.page.viewportSize(), QImage.Format_ARGB32) image.setDotsPerMeterX(self.dpi * (100 / 2.54)) image.setDotsPerMeterY(self.dpi * (100 / 2.54)) painter = QPainter(image) self.page.mainFrame().render(painter) painter.end() cheight = image.height() cwidth = image.width() pos = 0 while pos < cheight: img = image.copy(0, pos, cwidth, min(cheight - pos, cutoff_height)) pos += cutoff_height - 20 if cwidth > self.width: img = img.scaledToWidth(self.width, Qt.SmoothTransform) f = os.path.join(self.tdir, '%d.png' % pos) img.save(f) self.images.append((f, img.width(), img.height())) finally: QApplication.quit()
def render_html(self, ok): try: if not ok: return cwidth, cheight = self.page.mainFrame().contentsSize().width(), self.page.mainFrame().contentsSize().height() self.page.setViewportSize(QSize(cwidth, cheight)) factor = float(self.width)/cwidth if cwidth > self.width else 1 cutoff_height = int(self.height/factor)-3 image = QImage(self.page.viewportSize(), QImage.Format_ARGB32) image.setDotsPerMeterX(self.dpi*(100/2.54)) image.setDotsPerMeterY(self.dpi*(100/2.54)) painter = QPainter(image) self.page.mainFrame().render(painter) painter.end() cheight = image.height() cwidth = image.width() pos = 0 while pos < cheight: img = image.copy(0, pos, cwidth, min(cheight-pos, cutoff_height)) pos += cutoff_height-20 if cwidth > self.width: img = img.scaledToWidth(self.width, Qt.SmoothTransform) f = os.path.join(self.tdir, '%d.png'%pos) img.save(f) self.images.append((f, img.width(), img.height())) finally: QApplication.quit()
def btn_sel_photo_clicked(self): fileName = QFileDialog.getOpenFileName(self, caption="Select Photo", filter="Image Files (*.png *.jpg *.bmp)") if (len(fileName) is not 0): print(fileName[0]) self.file_path = fileName[0] img = QImage(fileName[0]) self.img = img.copy() self.setPhototoView(img) arr = fileName[0].split("/") index = len(arr) - 1 self.lbl_photo_loc.setText(file_dir+"/"+arr[index])