Hi,
You can poke at the insides of
ImageItem:
http://www.pyqtgraph.org/documentation/_modules/pyqtgraph/graphicsItems/ImageItem.html#ImageItem.__init__
So using imageItems[0].image to retrieve the original image data as a numpy
array, or imageItems[0].qimage to get the QImage
<https://doc.qt.io/qt-5/qimage.html> that is actually rendered. It would be
up to you to do any required processing and/or telling cv how to interpret
the raw pixel data (colour depth etc).
Patrick
On Friday, 28 February 2020 09:01:43 UTC+10:30, Aldrich Cabrera wrote:
>
> Hi, I have a code where obtain multiples pg.ImageItem, I visualise and
> save the images using "pg.exporters", but I would like to show the
> pg.ImageItems like a video or images in Cv2 without use pg.exporters. I
> share a part of my code:
>
>
>
> def saveFig(self):
> fname1 = "./result_%s.png"%time.strftime("%H:%M:%S", gmtime())
> fname2 = "./result_%s.png"%time.strftime("%H:%M:%S", gmtime())
> fname3 = "./result_%s.png"%time.strftime("%H:%M:%S", gmtime())
> fname4 = ./result_%s.png"%time.strftime("%H:%M:%S", gmtime())
> fname5 = "./result_%s.png"%time.strftime("%H:%M:%S", gmtime())
> fname6 = "./result_%s.png"%time.strftime("%H:%M:%S", gmtime())
> fname7 = "./result_%s.png"%time.strftime("%H:%M:%S", gmtime())
> fname8 = "./result_%s.png"%time.strftime("%H:%M:%S", gmtime())
>
> """self.exporter1 = pg.exporters.ImageExporter(self.pItems[0])
> self.exporter2 = pg.exporters.ImageExporter(self.pItems[1])
> self.exporter3 = pg.exporters.ImageExporter(self.pItems[2])
> self.exporter4 = pg.exporters.ImageExporter(self.pItems[3])
> self.exporter5 = pg.exporters.ImageExporter(self.pItems[4])
> self.exporter6 = pg.exporters.ImageExporter(self.pItems[5])
> self.exporter7 = pg.exporters.ImageExporter(self.pItems[6])
> self.exporter8 = pg.exporters.ImageExporter(self.pItems[7])"""
>
> self.exporter1 = pg.exporters.ImageExporter(self.imageItems[0])
> self.exporter2 = pg.exporters.ImageExporter(self.imageItems[1])
> self.exporter3 = pg.exporters.ImageExporter(self.imageItems[2])
> self.exporter4 = pg.exporters.ImageExporter(self.imageItems[3])
> self.exporter5 = pg.exporters.ImageExporter(self.imageItems[4])
> self.exporter6 = pg.exporters.ImageExporter(self.imageItems[5])
> self.exporter7 = pg.exporters.ImageExporter(self.imageItems[6])
> self.exporter8 = pg.exporters.ImageExporter(self.imageItems[7])
>
> self.exporter =
> [self.exporter1,self.exporter2,self.exporter3,self.exporter4,self.exporter5,self.exporter6,self.exporter7,self.exporter8]
>
> for i in range(len(self.pItems)):
> self.exporter[i].params.param('width').setValue(553,
> blockSignal=self.exporter[i].widthChanged)
> self.exporter[i].params.param('height').setValue(396,
> blockSignal=self.exporter[i].heightChanged)
>
> a = self.exporter[0].export(fname1)
> cv2.imshow(a)
> #self.exporter[1].export(fname2)
> #self.exporter[2].export(fname3)
> #self.exporter[3].export(fname4)
> #self.exporter[4].export(fname5)
> #self.exporter[5].export(fname6)
> #self.exporter[6].export(fname7)
> #self.exporter[7].export(fname8)
>
>
>
>
--
You received this message because you are subscribed to the Google Groups
"pyqtgraph" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msgid/pyqtgraph/44183006-84db-44b0-8d6e-d3c56d959d6c%40googlegroups.com.
