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imagecalibrate.py
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# This Python file uses the following encoding: utf-8
import sys, io
from PyQt5.QtWidgets import QWidget, QGraphicsScene, QGraphicsPixmapItem, QGraphicsView
from PyQt5 import uic
from PyQt5.QtGui import QPixmap, QImage
from PyQt5.QtCore import QObject, pyqtSignal, pyqtSlot, QBuffer, Qt, QPoint, QRect, QPointF, QVariant, QMimeData, QSize, QIODevice
from PIL import ImageEnhance, Image
import numpy as np
import cv2
from rubberband import RubberBand
#from ui_configform import Ui_Form
class GraphicsScene(QGraphicsScene):
def __init__(self, parent=None):
super(GraphicsScene, self).__init__(parent)
self.parent = parent
self.origin = QPoint()
self.region = QRect()
def mousePressEvent(self, event):
if self.parent.rubberBand.isVisible():
self.parent.rubberBand.hide()
def mouseReleaseEvent(self, event):
if event.button() == Qt.LeftButton:
# self.rubberBand.hide()
self.region = QRect(self.origin, event.screenPos()).normalized()
def mouseMoveEvent(self, event):
#print('mouse move')
if not event.buttons() == Qt.LeftButton:
return
def dragEnterEvent(self,event):
#print(event.mimeData().text())
typ = event.mimeData().text().split('.').pop().lower()
if typ in self.parent.imageTypes:
event.acceptProposedAction()
## needed to get drop events from outside!
def dragMoveEvent(self,event):
event.acceptProposedAction()
def dropEvent(self, event):
typ = event.mimeData().text().split('.').pop().lower()
if typ in self.parent.imageTypes:
event.accept()
imgpath = event.mimeData().text().lstrip("file:")
pix = QPixmap(imgpath)
#self.parent.pixmapItem.setPixmap(pix.scaled(int(pix.width()*0.5),int(pix.height()*0.5),Qt.KeepAspectRatio))
self.parent.pixmapItem.setPixmap(pix)
self.parent.ui.view.fitInView(self.parent.pixmapItem,Qt.KeepAspectRatio)
img = Image.open(imgpath)
#self.parent.pilBufferImg = img.resize((int(img.width*0.5),int(img.height*0.5)))
self.parent.pilBufferImg = img
print()
rect = self.parent.ui.view.mapFromScene(0.0,0.0, float(img.size[0]),float(img.size[1])).boundingRect()
self.parent.rubberBand.setMaximumSize(QSize(rect.width(),rect.height()))
self.parent.enhanceImage()
class ConfigWindow(QWidget):
def __init__(self,parent=None):
super().__init__()
self.ui = uic.loadUi("configform.ui", self)
#self.ui = Ui_Form()
#self.ui.setupUi(self)
self.parent = parent
self.ui.brigthnesSlider.valueChanged.connect(self.brigthnesSlot)
self.ui.contrastSlider.valueChanged.connect(self.contrastSlot)
self.ui.brigthnessLcd.valueChanged.connect(self.setBrightSlider)
self.ui.contrastLcd.valueChanged.connect(self.setContastSlider)
self.ui.colorSlider.valueChanged.connect(self.colorSlot)
self.ui.sharpnessSlider.valueChanged.connect(self.sharpnessSlot)
self.ui.colorLcd.valueChanged.connect(self.setColorSlider)
self.ui.sharpnessLcd.valueChanged.connect(self.setSharpnessSlider)
self.ui.gammaLcd.valueChanged.connect(self.setGammaSlider)
self.ui.gammaSlider.valueChanged.connect(self.gammaSlot)
self.ui.checkCrop.stateChanged.connect(self.setCrop)
self.rubberBand = RubberBand(self.ui.view)
#self.rubberBand.setMaximumSize(QSize(397,552))
self.ui.view.setRubberBandSelectionMode(Qt.IntersectsItemBoundingRect)
self.ui.view.rubberBandChanged.connect(self.getCropRect)
self.rubberBand.cropSignal.connect(self.crop)
self.rubberBand.sizeSignal.connect(self.setSize)
self.rubberBand.hide()
self.scene = GraphicsScene(self)
self.pixmap = QPixmap()
self.pixmapItem = QGraphicsPixmapItem()
self.scene.addItem(self.pixmapItem)
self.ui.view.setScene(self.scene)
#self.ui.view.fitInView(self.pixmapItem,Qt.KeepAspectRatio)
#self.pixmap.load("Calibrate_Test_1.png")
self.qbuffer = QBuffer()
self.pilBufferPath = io.BytesIO()
self.pilBufferImg = Image.new('RGBA',(1,1))
self.bright = self.ui.brigthnesSlider.maximum()/2
self.contast = self.ui.contrastSlider.maximum()/2
self.imageTypes = ['png','jpg','tiff','tif']
@pyqtSlot(int)
def gammaSlot(self, value):
val =value/10
self.ui.gammaLcd.blockSignals(True)
self.ui.gammaLcd.setValue(val)
self.ui.gammaLcd.blockSignals(False)
self.enhanceImage()
@pyqtSlot(float)
def setGammaSlider(self,val):
value = val*10
self.ui.gammaSlider.blockSignals(True)
self.ui.gammaSlider.setValue(int(value))
self.ui.gammaSlider.blockSignals(False)
self.ui.gammaSlider.valueChanged.emit(int(value))
@pyqtSlot(int)
def colorSlot(self,value):
val =value/10
self.ui.colorLcd.blockSignals(True)
self.ui.colorLcd.setValue(val)
self.ui.colorLcd.blockSignals(False)
color = self.ui.colorSlider.value()/10
#self.enhanceImage(None, None,color,None)
self.enhanceImage()
@pyqtSlot(int)
def sharpnessSlot(self,value):
val =value/10
self.ui.sharpnessLcd.blockSignals(True)
self.ui.sharpnessLcd.setValue(val)
self.ui.sharpnessLcd.blockSignals(False)
sharp = self.ui.sharpnessSlider.value()/10
#self.enhanceImage(None, None,None,sharp)
self.enhanceImage()
@pyqtSlot(float)
def setSharpnessSlider(self,val):
value = val*10
self.ui.sharpnessSlider.blockSignals(True)
self.ui.sharpnessSlider.setValue(int(value))
self.ui.sharpnessSlider.blockSignals(False)
self.ui.sharpnessSlider.valueChanged.emit(int(value))
@pyqtSlot(float)
def setColorSlider(self,val):
value = val*10
self.ui.colorSlider.blockSignals(True)
self.ui.colorSlider.setValue(int(value))
self.ui.colorSlider.blockSignals(False)
self.ui.colorSlider.valueChanged.emit(int(value))
@pyqtSlot(int)
def brigthnesSlot(self,int):
val =int/10
self.ui.brigthnessLcd.blockSignals(True)
self.ui.brigthnessLcd.setValue(val)
self.ui.brigthnessLcd.blockSignals(False)
contrast = self.ui.contrastSlider.value()/10
#self.enhanceImage(None,contrast,None,None)
self.enhanceImage()
@pyqtSlot(int)
def contrastSlot(self,int):
val =int/10
self.ui.contrastLcd.blockSignals(True)
self.ui.contrastLcd.setValue(val)
self.ui.contrastLcd.blockSignals(False)
bright = self.ui.brigthnesSlider.value()/10
#self.enhanceImage(bright,None,None,None)
self.enhanceImage()
@pyqtSlot(float)
def setBrightSlider(self,val):
value = val*10
self.ui.brigthnesSlider.blockSignals(True)
self.ui.brigthnesSlider.setValue(int(value))
self.ui.brigthnesSlider.blockSignals(False)
self.ui.brigthnesSlider.valueChanged.emit(int(value))
@pyqtSlot(float)
def setContastSlider(self,val):
value = val*10
self.ui.contrastSlider.blockSignals(True)
self.ui.contrastSlider.setValue(int(value))
self.ui.contrastSlider.blockSignals(False)
self.ui.contrastSlider.valueChanged.emit(int(value))
@pyqtSlot(QRect, QPointF, QPointF)
def getCropRect(self, rect, start, end):
pass
if self.ui.checkCrop.isChecked():
self.rubberBand.show()
srect = self.ui.view.mapToScene(rect).boundingRect().toRect()
#print(srect)
if rect.isEmpty():
self.rubberBand.show()
else:
self.rubberBand.setGeometry(rect)
@pyqtSlot()
def crop(self):
pass
self.parent.cropSize["left"] = self.ui.cropX.value()
self.parent.cropSize["top"] = self.ui.cropY.value()
self.parent.cropSize["width"] = self.ui.cropW.value()
self.parent.cropSize["height"] = self.ui.cropH.value()
self.rubberBand.hide()
@pyqtSlot()
def setCrop(self):
pass
## ensure that RubberBandDrag dragmode is set
## if not rubberBand will not work correctly
self.ui.view.setDragMode( QGraphicsView.RubberBandDrag)
@pyqtSlot(QRect)
def setSize(self,rect):
## this the offset to subtract from srect
offset = 13
srect = self.ui.view.mapToScene(rect).boundingRect().toRect()
self.ui.cropX.setValue(srect.x()-offset)
self.ui.cropY.setValue(srect.y()-offset)
self.ui.cropH.setValue(srect.height()+-(offset*2))
self.ui.cropW.setValue(srect.width()-(offset*2))
pass
def gamma_table(self, bands, gamma_r, gamma_g, gamma_b, gamma_a, gain_r=1.0, gain_g=1.0, gain_b=1.0, gain_a=1.0):
r_tbl = [min(255, int((x / 255.) ** (1. / gamma_r) * gain_r * 255.)) for x in range(256)]
g_tbl = [min(255, int((x / 255.) ** (1. / gamma_g) * gain_g * 255.)) for x in range(256)]
b_tbl = [min(255, int((x / 255.) ** (1. / gamma_b) * gain_b * 255.)) for x in range(256)]
a_tbl = [min(255, int((x / 255.) ** (1. / gamma_a) * gain_a * 255.)) for x in range(256)]
if len(bands) == 3:
return r_tbl + g_tbl + b_tbl
else:
return r_tbl + g_tbl + b_tbl + a_tbl
def enhanceImage(self):
cont = self.ui.contrastSlider.value()/10
sharp = self.ui.sharpnessSlider.value()/10
bright = self.ui.brigthnesSlider.value()/10
color = self.ui.colorSlider.value()/10
gamma = self.ui.gammaSlider.value()/10
convertImg = io.BytesIO()
pilImg = self.pilBufferImg
brightness = ImageEnhance.Brightness(pilImg)
pilImg = brightness.enhance(bright)
contrast = ImageEnhance.Contrast(pilImg)
pilImg = contrast.enhance(cont)
colour = ImageEnhance.Color(pilImg)
pilImg = colour.enhance(color)
sharpness = ImageEnhance.Sharpness(pilImg)
pilImg = sharpness.enhance(sharp)
# print("Bands: ",pilImg.getbands())
bands = pilImg.getbands()
gammaImg = pilImg.point(self.gamma_table(bands, gamma, gamma, gamma,gamma))
pilImg = gammaImg.copy()
pilImg.save(convertImg,"BMP")
self.pixmap.loadFromData(convertImg.getvalue(), "BMP")
self.pixmapItem.setPixmap(self.pixmap)
def setBufferImage(self):
self.qbuffer.open(QIODevice.ReadWrite)
img = self.pixmapItem.pixmap()
img.save(self.qbuffer,"PNG")
self.pilBufferPath.write(self.qbuffer.data())
self.qbuffer.close()
self.pilBufferPath.seek(0)
self.pilBufferImg = Image.open(self.pilBufferPath)
def wheelEvent(self, event):
point = event.position()
degrees = event.angleDelta() / 8
self.pixmapItemScale = self.pixmapItem.scale()
print(self.pixmapItemScale)
if self.pixmapItem.isUnderMouse():
if degrees.y()/15 > 0:
#self.ui.view.scale(1.25, 1.25)
self.pixmapItem.setScale(self.pixmapItemScale+0.01)
else:
#self.ui.view.scale(0.8, 0.8)
if self.pixmapItemScale > 0.15:
self.pixmapItem.setScale(self.pixmapItemScale-0.01)
def closeEvent(self, event):
self.scene.clear()
event.accept()