i am stucking in problem i have designed application in asp.net and i have use
"https://fonts.googleapis.com/css?family=Libre Barcode 39 Extended Text"
and it works fine It works fine when showing in browsers
but when i use black copper 1d barcode scanner it is not reading the barcode
what i m doing wring please help me out
thanks
asad
this barcode scanner i am using
enter image description here
Barcodes need to render as monochrome black/white images. Fonts on the other hand render anti-aliased, meaning up to 256 level grayscale. If you copy your barcode into an image editor and zoom in, you will see that the black bars do not have sharp edges - they are blurry. Part of the the blurriness is also caused by the "cleartype-style" sub-pixel rendering that most font engines use.
You will be better off if you can render the barcode as an image, where you have pixel-level control.
Related
Different between nine-patch Image vs regular Bitmap Image in Android. and where we use nine-patch Image and where we use regular Bitmap Image.
9 patch images allow you to choose the area of the image that can be scaled and the area that should keep unscaled, unlike the regular images that are scaled along height and width in the same way.
For example this image, where the corners will not be scaled
It is useful for layouts that can vary greatly in size.
To control scaling in regular images you can use ScaleType property of ImageView
These description from Google search:
What Are 9 Patch Images
https://github.com/chrislondon/9-Patch-Image-for-Websites/wiki/What-Are-9-Patch-Images
Google Slideshow: https://docs.google.com/present/view?id=dc7ghz8w_34f8338rcg
very very helpful tool to understand 9 patch image:
https://romannurik.github.io/AndroidAssetStudio/nine-patches.html#source.type=image&sourceDensity=320&name=logo_cbfea26
[![enter image description here][1whileHello,
I have an issue in Corona while displaying the same image(blue bar) two times to be displayed as continuous layout to seem as one continuous image, but the issue is that the output shows as there was an edge between both images, here is my code:
img1 = display.newImage("dialog_b_mid.png", _X/2, 770 )
display.newImage("dialog_b_mid.png", _X/2, 770 + img1.height)
and here is the output
You should use images without borders on any side, this image has top or bottom border, and it looks like an edge between two images.
Obviously, you must avoid gradients.
You can create an image using a software like Photoshop, just create a new (rectangle) file and fill it with a color.
You can also use patterns or parallax backgrounds, learn more on Google.
I have attached my output here, sorry to forgot the attachemnt in the main post.
I want to be able to layer images(PNG) with blank space over other images and have the images underneath still partly visible. right now my Image loading function will prints black space where it should have the background image.
As Noah mentioned, if your PNG images don't have an alpha channel, you can use LÖVE's blend modes.
https://love2d.org/wiki/BlendMode
Try displaying your image with "premultiplied", for instance.
love.graphics.setBlendMode("premultiplied")
love.graphics.draw(myImage)
love.graphics.setBlendMode("alpha")
"alpha" being the default blend mode.
I am trying to print a transparent image in a Win32 application. The image has an alpha channel, but I could also live with a simple transparency mask.
When using the ::AlphaBlend method it is shown correctly on screen and gets printed correctly on my HP ColorSphere printer. However, with PDF printers (e.g. Primo PDF) the image appears opaque in the PDF.
When insertig the same image in Word, setting the transparency color to white, the image appears correctly transparent when using Primo PDF.
How should I draw my image so that the transparency also works in PDF printers? Or: how is Microsoft Word achieving this?
Thanks,
Fabian
I am trying to build a windows phone live tile. I want some text on the tile that is the accent colour. What this means is that I need to draw some text on the tile that is transparent. I don't seem to be able to write in the transparent colour.
I have a User Control which is 173 by 173 pixels which I save as a png file. I use this png as the image for the live tile. The transparent bits of the image come out in the current accent colour.
Any ideas how to write in the transparent colour in xaml?
This behaviour is to be expected. In your original question you are effectively saying "Write invisible text on top of the image", and that's what you're getting (imagine writing in invisible ink on a photograph). You effectively need to do one of two things.
1) Figure out which pixels are part of the text you're writing, and "remove" them from the image so the background colour shows through, or
2) Write text in the background colour ({StaticResource PhoneAccentBrush})
EDIT
You can probably achieve what you need using an Opacity Mask. Apologies for only providing that as a link as I haven't done this myself.