def createNullImage(self):
nullImage = QtGui.QImage()
byteArray = QtCore.QByteArray()
buffer = QtCore.QBuffer(byteArray)
buffer.open(QtCore.QIODevice.WriteOnly)
nullImage.save(buffer, "PNG")
return byteArray
def setAutolevel(self):
xgmax = 0
xgmin = 255
image = self.imageName
buffer = QtCore.QBuffer()
buffer.open(QtCore.QBuffer.ReadWrite)
image.save(buffer, "JPG")
pil_im = Image.open(io.BytesIO(buffer.data()))
pil_im.convert('RGB')
width, height = pil_im.size
for i in range(width):
for j in range(height):
r, g, b, a = QtGui.QColor(image.pixel(i ,j)).getRgb()
xg = r
if xg < xgmin:
xgmin = xg
if xg > xgmax:
xgmax = xg
for i in range(width):
for j in range(height):
r, g, b, a = QtGui.QColor(image.pixel(i ,j)).getRgb()
xg = r
xb = (255 * (xg - xgmin))/(xgmax-xgmin)
image.setPixel(i, j, QtGui.QColor(xb, xb, xb, a).rgb())
self.showImage(QtGui.QPixmap.fromImage(image))
def widget_to_png_to_bytes(widget, keep_aspect=True, width=200, height=100):
"""
Renders the widget content in a png format as a bytes string
Parameters
----------
widget: (QWidget) the widget to render
keep_aspect: (bool) if True use width and the widget aspect ratio to calculate the height
if False use set values of width and height to produce the png
width: (int) the rendered width of the png
height: (int) the rendered width of the png
Returns
-------
binary string
"""
png = widget.grab().toImage()
wwidth = widget.width()
wheight = widget.height()
if keep_aspect:
height = width * wheight / wwidth
png = png.scaled(width, height, QtCore.Qt.KeepAspectRatio)
buffer = QtCore.QBuffer()
buffer.open(QtCore.QIODevice.WriteOnly)
png.save(buffer, "png")
return buffer.data().data()
def processImage(img):
buffer = QtCore.QBuffer()
buffer.open(QtCore.QBuffer.ReadWrite)
img.save(buffer, "PNG")
pil_img = Image.open(io.BytesIO(buffer.data()))
buffer.close()
try:
result = pytesseract.image_to_string(
pil_img,
timeout=5,
lang=(sys.argv[1] if len(sys.argv) > 1 else None)).strip()
except RuntimeError as error:
print(
f"ERROR: An error occurred when trying to process the image: {error}"
)
notify(f"An error occurred when trying to process the image: {error}")
return
if result:
pyperclip.copy(result)
print(f'INFO: Copied "{result}" to the clipboard')
notify(f'Copied "{result}" to the clipboard')
else:
print(f"INFO: Unable to read text from image, did not copy")
notify(f"Unable to read text from image, did not copy")
def display_popup(msg):
global window
def close_msg():
popup.destroy()
window.setWindowIcon(QIcon('icon.png'))
rand_exercise = exercise_controlelr.recommend_exercise()
window.setWindowTitle('Your Exercise Recommendation Is:')
window.setGeometry(100, 100, 600, 600)
window.move(60, 15)
main_layout = QVBoxLayout()
exercise_header = parse_header(rand_exercise)
header_label = QLabel(exercise_header)
header_label.move(60, 15)
main_layout.addWidget(header_label)
img_urls = [
x.group()
for x in re.finditer(r'<img id=".*" src=".*/>', rand_exercise, re.M)
]
img_urls = [re.search(r'src="(.+?)"', url).group(1) for url in img_urls]
movies_data = []
data_buffers = []
movies = []
movie_labels = []
gif_layout = QHBoxLayout()
gif_layout.addStretch(1)
for i in range(len(img_urls)):
print(img_urls[i])
req = Request(img_urls[i], headers={'User-Agent': 'Mozilla/5.0'})
data = urlopen(req).read()
movies_data.append(QtCore.QByteArray(data))
data_buffers.append(QtCore.QBuffer(movies_data[i]))
data_buffers[i].open(QtCore.QIODevice.ReadOnly)
movies.append(QMovie())
movies[i].setDevice(data_buffers[i])
movies[i].setFormat(QtCore.QByteArray(b'gif'))
movie_labels.append(QLabel())
movie_labels[i].setMovie(movies[i])
gif_layout.addWidget(movie_labels[i])
movies[i].start()
gif_layout.addStretch(1)
main_layout.addLayout(gif_layout)
exercise_instructions = parse_instructions(rand_exercise)
instructions_label = QLabel(exercise_instructions)
instructions_label.move(60, 15)
main_layout.addWidget(instructions_label)
window.setLayout(main_layout)
window.show()
app.exec_()
def getBytesFromPixmap(self, pixmap):
ba = QtCore.QByteArray()
buff = QtCore.QBuffer(ba)
buff.open(QtCore.QIODevice.WriteOnly)
ok = pixmap.save(buff, "PNG")
assert ok
pixmap_bytes = ba.data()
return self.toNumpyBytes(pixmap_bytes)
def kuantisasi64(self):
image = self.imageName
buffer = QtCore.QBuffer()
buffer.open(QtCore.QBuffer.ReadWrite)
image.save(buffer, "JPG")
pil_im = Image.open(io.BytesIO(buffer.data()))
im = pil_im.convert("P", palette=Image.ADAPTIVE, colors=64)
self.showImage(self.pil2pixmap(im))
def html(pixmap, attributes=''):
"""Return an <img>-tag that contains the pixmap embedded into HTML using a data-URI
(https://en.wikipedia.org/wiki/Data_URI_scheme). Use this to include pixmaps that are not stored in a
file into HTML-code. *attributes* is inserted into the tag and may contain arbitrary HTML-attributes.
"""
buffer = QtCore.QBuffer()
pixmap.save(buffer, "PNG")
string = bytes(buffer.buffer().toBase64()).decode('ascii')
return '<img {} src="data:image/png;base64,{}" />'.format(attributes, string)
def request(
self,
request_header: QHttpRequestHeader,
data_: Optional[Union[QtCore.QIODevice, QtCore.QByteArray]] = None,
buffer_: Optional[QtCore.QBuffer] = None,
) -> None:
"""Send request."""
self._data = None
del self._data
if buffer_ is None:
buffer_ = QtCore.QBuffer()
_request = QtNetwork.QNetworkRequest()
_tipo = request_header.method().lower()
# if request_header.hasContentType():
# _request.setHeader(
# QtNetwork.QNetworkRequest.ContentTypeHeader, request_header.contentType()
# )
url_ = QtCore.QUrl(request_header.path())
for k in request_header._values.keys():
if k != "host":
_request.setRawHeader(
str.encode(k),
str.encode(str(request_header._values[k]).lower()))
else:
url_ = QtCore.QUrl(
"%s/%s" %
(request_header.value("host"), request_header.path()))
if not url_.isValid():
raise Exception("url_ is not a valid URL!")
_request.setUrl(url_)
method_ = getattr(self._manager, _tipo, None)
self._data = buffer_
if self._data is not None:
self._data.open(QtCore.QIODevice.ReadWrite)
self._state = self.Connecting
if _tipo == "get":
self._reply = method_(_request)
else:
self._reply = method_(_request, data_)
cast(QtCore.pyqtSignal, self._reply.downloadProgress).connect(
self._slotNetworkProgressRead)
cast(QtCore.pyqtSignal,
self._reply.uploadProgress).connect(self._slotNetworkProgressSend)
self._state = self.Connected
self._current_id = request_header._id
self.requestStarted.emit(request_header._id)
def get_bytes_from_pixmap(pix: QPixmap):
if isinstance(pix, QPixmap):
barray = QtCore.QByteArray()
buff = QtCore.QBuffer(barray)
buff.open(QtCore.QIODevice.WriteOnly)
ok = pix.save(buff, "png")
return barray.data() if ok else None
else:
return None
def create_qmovie(self):
self.giffy = self.create_anim_gif(imageio.RETURN_BYTES)
print('giffy=%d' %(len(self.giffy)))
self.byteArray = QtCore.QByteArray(self.giffy)
self.gif_bytes = QtCore.QBuffer(self.byteArray) # parent class is QIODevice
# oh my, the second arg has to be bytes, but it is just the format name!
# https://stackoverflow.com/questions/51832829/qmovie-unexpected-argument-qbuffer
self.mov = QtGui.QMovie(self.gif_bytes, b"gif")
return self.mov
def convertImage(fileName):
ba = QtCore.QByteArray()
buffer = QtCore.QBuffer(ba)
buffer.open(QtCore.QIODevice.WriteOnly)
image = QtGui.QImage(fileName)
image.save(buffer, 'png')
return ba
def qImageToImageio(qimage):
"""
Convert a QImage to an imageio image.
"""
buffer = QtCore.QBuffer()
buffer.open(QtCore.QIODevice.ReadWrite)
qimage.save(buffer, 'PNG')
return imageio.imread(bytes(buffer.data()))
def grayscale(self):
image = self.imageName
buffer = QtCore.QBuffer()
buffer.open(QtCore.QBuffer.ReadWrite)
image.save(buffer, "JPG")
pil_im = Image.open(io.BytesIO(buffer.data()))
im = pil_im.convert('RGB')
matrix = (0.2, 0.5, 0.3, 0.0, 0.2, 0.5, 0.3, 0.0, 0.2, 0.5, 0.3, 0.0)
result = im.convert('RGB', matrix)
self.showImage(self.pil2pixmap(result))
def qimage_to_pil_image(self, image):
buffer = QtCore.QBuffer()
buffer.open(QtCore.QIODevice.ReadWrite)
image.save(buffer, "PNG")
strio = io.BytesIO()
strio.write(buffer.data())
buffer.close()
strio.seek(0)
return Image.open(strio)
def processImage(self, img):
buffer = QtCore.QBuffer()
buffer.open(QtCore.QBuffer.ReadWrite)
img.save(buffer, "PNG")
img_work = Image.open(io.BytesIO(buffer.data()))
# Upscale
new_size = (dim * 5 for dim in img_work.size)
img_work = img_work.resize(new_size, resample=Image.LANCZOS)
# Threshold
img_work = np.array(img_work)
img_work = skimage.color.rgb2gray(img_work)
thresh = threshold_otsu(img_work)
# thresh = threshold_yen(img_work)
img_work = img_work > thresh
# Final image
img_final = Image.fromarray(img_work)
# img2tex
# img_final.save("temp.png")
# buffer.close()
# img2tex
# result = ScribbleMyScience.img2tex("temp.png")
# os.remove("temp.png")
# if result:
# result = result.strip()
# result = "$$\n" + result + "\n$$\n"
# else:
try:
result = pytesseract.image_to_string(
img_final,
timeout=20,
lang=(sys.argv[1] if len(sys.argv) > 1 else None))
if result:
result = result.strip()
except RuntimeError as error:
print(
f"ERROR: An error occurred when trying to process the image: {error}"
)
result = None
if result:
if result != "":
pyperclip.copy(result)
else:
pyperclip.copy("OCR_FAILED")
print(f"OCR_FAILED")
else:
pyperclip.copy("OCR_FAILED")
print(f"OCR_FAILED")
def Kuantisasi64(self):
image = self.imageName
buffer = QtCore.QBuffer()
buffer.open(QtCore.QBuffer.ReadWrite)
image.save(buffer, "JPG")
pil_im = Image.open(io.BytesIO(buffer.data()))
im = pil_im.convert("P", palette=Image.ADAPTIVE, colors=64)
self.scene = QtWidgets.QGraphicsScene()
self.scene.addPixmap(self.pil2pixmap(im))
self.graphicsView_2.setScene(self.scene)
self.graphicsView_2.fitInView(self.scene.itemsBoundingRect())
def onImageReady(self, filename, image):
self.processedImages[self.filenames.index(filename)] = image
remaining = len(self.filenames) - self.current_index
if len(self.processedImages) == min(3, remaining):
index_list = list(self.processedImages.keys())
index_list.sort()
#here save images as pdf
for index in index_list:
image = self.processedImages[index]
rotation = self.tableWidget.item(index, 0).rotation
# create buffer for saving image in memory
buff = QtCore.QBuffer(self)
buff.open(QtCore.QIODevice.ReadWrite)
img = PdfObj(Type='/XObject',
Subtype='/Image',
Width=image.width(),
Height=image.height())
if self.clearBgBtn.isChecked(
): # Embed as monochrome png image
#image = image.convertToFormat(QImage.Format_Mono)
image.save(buff, "PNG")
idat, palette, bpc = parse_png(buff.data().data())
#img['ColorSpace'] = '/DeviceGray'
img['Filter'] = '/FlateDecode'
img['BitsPerComponent'] = bpc
img['ColorSpace'] = '[/Indexed /DeviceRGB 1 <ffffff000000>]'
decode_parms = PdfDict(BitsPerComponent=bpc,
Predictor=15,
Colors=1,
Columns=image.width())
img['DecodeParms'] = decode_parms
imgdat = idat
else: # embed as jpeg image
img['ColorSpace'] = '/DeviceRGB'
img['BitsPerComponent'] = 8
img['Filter'] = '/DCTDecode'
image.save(buff, "JPG")
imgdat = buff.data().data()
self.writer.addObj(img, stream=imgdat)
cont = PdfObj()
pg_w, pg_h, matrix = pageMatrix(image.width(), image.height(),
rotation)
cont_strm = 'q %s /img0 Do Q' % matrix
self.writer.addObj(cont, stream=cont_strm)
page = self.writer.createPage(w=pg_w, h=pg_h, Contents=cont)
page['Resources'] = PdfDict(XObject=PdfDict(img0=img))
self.writer.addPage(page)
buff.data().clear() # clear buffer to free memory
buff.close()
self.processedImages.clear()
self.current_index += min(3, remaining)
self.beginProcessing()
def resize_image(cover_image):
cover_image = cover_image.scaled(420, 600, QtCore.Qt.IgnoreAspectRatio)
byte_array = QtCore.QByteArray()
buffer = QtCore.QBuffer(byte_array)
buffer.open(QtCore.QIODevice.WriteOnly)
cover_image.save(buffer, 'jpg', 75)
cover_image_final = io.BytesIO(byte_array)
cover_image_final.seek(0)
return cover_image_final.getvalue()
def take_screenshot(self):
qPixmap = self.grab(QRect(QPoint(0, 0), QSize(-1, -1)))
qImage = qPixmap.toImage()
qBuffer = QtCore.QBuffer()
qBuffer.open(QtCore.QIODevice.ReadWrite)
qImage.save(qBuffer, "PNG")
strio = BytesIO()
strio.write(qBuffer.data())
qBuffer.close()
strio.seek(0)
pil_im = Image.open(strio)
self.images.append(pil_im)
def qimage2base64(img, format):
"""
将QImage对象转为base64字符串
:param img: QImage对象
:param format: 图片要转换为的格式："PNG", "JPG" ......
:return: 转换后的字符串
"""
data = QtCore.QByteArray()
buf = QtCore.QBuffer(data)
img.save(buf, format)
s = bytes(data.toBase64())
return s
def get_zip_graphic(self, name):
if os.path.exists("ecu.zip"):
zf = zipfile.ZipFile("ecu.zip", "r")
zname = "graphics/" + name + ".gif"
if not zname in zf.namelist():
zname = "graphics/" + name + ".GIF"
if zname in zf.namelist():
ba = core.QByteArray(zf.read(zname))
self.buffer = core.QBuffer()
self.buffer.setData(ba)
self.buffer.open(core.QIODevice.ReadOnly)
self.img = gui.QMovie(self.buffer, b"gif")
def onFrameChanged(self, frame):
if frame != 0:
self.label_time.setNum(frame)
else:
self.label_time.setText("Smile...!")
QtWidgets.QApplication.beep()
image = QtGui.QImage(self.converter.image)
ba = QtCore.QByteArray()
buff = QtCore.QBuffer(ba)
image.save(buff, "PNG")
th = threading.Thread(target=send_email, args=(*self._info, ba))
th.start()
def shootScreen(self):
img = Screenshot.take_screenshot(constant.CLIPBOARD)
if img is not None:
self.originalPixmap = None
self.originalPixmap = QPixmap(img)
self.updateScreenshotLabel()
byte_array = QtCore.QByteArray()
buffer = QtCore.QBuffer(byte_array)
buffer.open(QtCore.QIODevice.WriteOnly)
self.originalPixmap.save(buffer, 'PNG')
self.encoded_pic = buffer.data().toBase64()
def Greyscale(self):
image = self.imageName
buffer = QtCore.QBuffer()
buffer.open(QtCore.QBuffer.ReadWrite)
image.save(buffer, "JPG")
pil_im = Image.open(io.BytesIO(buffer.data()))
im = pil_im.convert('RGB')
matrix = (0.2, 0.5, 0.3, 0.0, 0.2, 0.5, 0.3, 0.0, 0.2, 0.5, 0.3, 0.0)
result = im.convert('RGB',matrix)
self.scene = QtWidgets.QGraphicsScene()
self.scene.addPixmap(self.pil2pixmap(result))
self.graphicsView_2.setScene(self.scene)
self.graphicsView_2.fitInView(self.scene.itemsBoundingRect())
def getFeedIconAsTextEncodedByteArray(self):
""" Returns the feed icon as a base64-encoded string. This is used when exporting a feed as XML. """
pixmap = self.getFeedIcon()
if pixmap is not None:
buffer = QtCore.QBuffer()
buffer.open(QtCore.QIODevice.ReadWrite)
pixmap.save(buffer, "PNG")
base64ByteArray = buffer.data().toBase64()
testByteArray = bytearray(base64ByteArray)
base64ByteArrayStr = testByteArray.decode('utf-8')
return str(base64ByteArrayStr)
else:
return ""
def chooseFile(self):
self.file = QFileDialog.getOpenFileName(self, 'Open File')
pixmap = QtGui.QPixmap(self.file[0])
self.lbl.setPixmap(pixmap.scaledToHeight(201))
if self.file != None:
ba = QtCore.QByteArray()
buff = QtCore.QBuffer(ba)
buff.open(QtCore.QIODevice.WriteOnly)
ok = pixmap.save(buff, "PNG")
assert ok
pixmap_bytes = ba.data()
#print(type(pixmap_bytes))
#data = self.file[0]
self.stri = base64.b64encode(pixmap_bytes)
def grabar(self):
regMarco = self.liEjemplos[0].bloqueDatos
nombre = regMarco.nombre.strip()
if nombre == "":
QTUtil2.mensError(self, _("Name missing"))
return
self.regMarco = regMarco
pm = self.liEjemplos[0].pixmap()
bf = QtCore.QBuffer()
pm.save(bf, "PNG")
self.regMarco.png = bf.buffer().data()
self.accept()
def convertImage(self):
byte_array = QtCore.QByteArray()
buffer = QtCore.QBuffer(byte_array)
buffer.open(QtCore.QIODevice.WriteOnly)
if fileName == '':
if pixMap.toImage().isNull() is True:
return
else:
pixMap.save(buffer, "jpg")
else:
pixMap.save(buffer, fileName.split('.')[-1])
ls_f = base64.b64encode(bytes(buffer.data()))
self.base64View.setText("[base64str]:data:image/png;base64," +
ls_f.decode("utf-8"))
def qImageToPilImage(qimage):
"""
Convert a QImage to a PIL Image.
http://stackoverflow.com/a/1756587/4718769
"""
buffer = QtCore.QBuffer()
buffer.open(QtCore.QIODevice.ReadWrite)
qimage.save(buffer, 'PNG')
bio = io.BytesIO()
bio.write(buffer.data())
buffer.close()
bio.seek(0)
return PIL.Image.open(bio)
