I have implemented ZXing-node and am able to scan generated QRcode images great, however any images captured via a phone camera, don't get recognized, even though I've added some GraphicsWizard manipulation to deblur, resize etc.
I have tried using the --try_harder option as well, without success.
However the ZXing.org website handles all of these without any issues, where can I find out what settings, or additional image manipulation are done here?
Cheers
It is also all open source: https://github.com/zxing/zxing/tree/master/zxingorg
It uses TRY_HARDER mode, and different binarizers, and will try PURE_BARCODE mode too.
Related
Hi it's my first time using esp32-S2 because now its not recommended to use esp32. I'm looking for saving images in SPIFFS for my web server. In esp32 i used to use esp32fs plugin (https://github.com/me-no-dev/arduino-esp32fs-plugin) but it doesn't work for esp32-S2. I would like to know if there is any plugin like esp32fs and if not how can i save my images (I'm using arduinoIDE 1.8.19). I've been searching but i didn't found anything. Any orientation is welcomed. Thank you for your time and assistance.
You can try my ESP32_FSWebServer_DRD or ESP_FSWebServer example of ESP_WiFiManager library
Follow the instructions in ESP_FSWebServer Example
You can use either deprecated SPIFFS or the better LittleFS
I am developing an android app where I have to train my app to recognize two images and four objects.I created one single database where I added all the images and objects target in vuforia developer site and created the unity package. Now neither image nor object is getting recognized.
Probably the problem is the same for objects and images.
I think you should share some more info about what your doing as well as some meaningful code implementing it.
W/O that, I would suggest:
verify that the database and trackables are loaded and active # runtime
if so, see in console that the trackables are tracked by Vuforia
if so, verify the code enabling your augmentations
Please confirm whether have run trough these steps already and what results you got. I can share some code and further tips once the issue is a little but more specific.
Regards
I am using a Oculus DK2 (v0.8) and OSVR SDK. I'm having a problem getting the HMD to run/display anything.
The Oculus samples and the OSVR samples do work however, so the osvr_server seems to run fine.
My application itself renders a test scene just fine when not using a HMD.
I tried two approaches:
First, just creating a osvr context and creating a DisplayConfig object. This seems to work, but DisplayConfig::checkStartup() fails (I do this in a loop, calling update on the context when the checkStartup call is failing). I used the OpenGLSample.cpp as a guide for this
Second, I tried using a RenderManager, but the call to createRenderManager results in a crash within the RenderManager.dll. I get the same crash wether I create the graphics lib object myself or if I let the library create it.
I am quite stuck now, since the demos and examples do work, I have no idea where to look for the error on my side. Creating the context works, querying interfaces as well, but the crash with createRenderManager is beyond me.
Does anyone have any hints or ideas what the problem could possibly be?
Regards and thanks in advance
pettersson
RenderManager should not crash during open. There have been a couple of bug fixes recently to avoid that happening, and the latest RenderManager binaries, libraries and header files are available with the SDK download from http://osvr.github.io/using/ along with updated copies of the example programs.
When something goes wrong in RenderManager, it usually reports that to standard error. We're moving that to a logging interface, but for now it should show up on the console. Posting an output of that as an issue at https://github.com/sensics/OSVR-RenderManager/issues is a good way to let the developers know that there is a problem. Of course, providing the same sort of information you provided here will be helpful as well.
Is there any API/SDK to support tts (text to speech) in Marmalade?
I've had some success porting Flite (http://www.speech.cs.cmu.edu/flite/) to the Marmalade environment. It produces wave files and raw, in-memory buffers (which can then be played using s3eSound directly) fine.
The s3eSound adapter (which plays the text directly from within flite) is a work in progress, so, while it does produce something close to recognisable speech, it is also obviously bugged. For my purposes, the raw buffers are more useful anyway, but feel free to try to fix it up.
You can see what I've done here https://github.com/madmaw/marmalade-flite
There is no specific API provided by Marmalade however you may be able to use the EDK if native APIs provide this functionality on iOS or Android.
https://www.madewithmarmalade.com/devnet/docs#/main/extensions.html
I have a Webview that must load an image! When I upload this image I see every time the same image as before, and i must reboot my app to see the new image...
I think is a cache problem..How can I solve that??
One quick and easy method would be to append the current time stamp onto the url whenever you load it.
So instead of loading:
http://www.myhost.com/myimg.jpg
you'd load
http://www.myhost.com/myimg.jpg?12345689
Using a cache breaker like this is a very common method in web development to force reloading of content.
I did do some quick googling and it appears clearing out NSURL's cache won't do the trick. In 10.6 the api reloadFromOrigin: may do the trick, but I'm not aware if this has made it's way onto the iphone yet.
Edit:
I found this page in the docs. It looks like you can use the preferences system to say whether or not to use caching. Not tested, but that'd be something to look at.