Using Deeplearning to remove mosaic?

There is a new Deeplearning code to decensor image, it also can remove mosaic from an image, the name is DeepCreamPy. I just tried this code today.

First I install the code and model, then prepare the input image, two people are studying. (Boy’s head is covered by mosaic.)

Using GIMP draw a green rectangle on the mosaic area save as another file.

Then run the code, get result.

I think the result is not too bad but is not good enough either. If we want using some technology to remove mosaic from the video, we may combine multiple frames’ information to reconstruct the information we need, if we only want to remove mosaic from one image, the code may need to have some domain information or using some imagination.

Start to use FreeStyle Libre Flash Glucose Monitoring System

I’m a type II diabetes patient, I found to control my blood glucose level is very difficult. Because I can’t know my blood glucose level at any time. You know using blood glucose meter too often is very painful.

So now I start to use FreeStyle Libre Flash Glucose Monitoring System, it only needs one install to last 14 days, and it can keep getting the blood glucose data from you body.

This is Chinese version:

FreeStyle Libre Flash Glucose Monitoring System Sensor Kit

Back of case of Sensor Kit

FreeStyle Libre Reader

How to use?

First, install.

Get sensor installer from case. Use installer  to install sensor.

user reader to active sensor.

Then use.

After one hour activation, you can use the reader to read data from the sensor at any time. But remember as least read data in 6 hours interval, because sensor only can remember data in 6 hours.

Finally remove it after it expired.

After 14 days use, the reader will remind you the sensor is expired, You need remove it. It is very easy just to pull it off your body, it won’t cause any pain. 

My ElasticSeach service is borken, and how I fix it.

My website(http://ourcoders.com/) have an ElasticSearch service, I use it to provide search service and related content function

Several days ago, I found out that this service is broken, so I start to want to fix it.

First I don’t remember why I think that this might because my java VM is 32bit, I try a lot of time to install OpenJDK-9,  OpenJDK-10, default-JDK, try to enable 64bit mode. But I was failed. 

Today I go into ElasticSearch install directory, I try to start it manually, I found out there is a error information:

So I edited my elasticsearch.yml add xpack.ml.enabled: false, and it fixed.

Best opensource or Open Api OCR engines or services

Microsoft Azure Computer Vision API

Read text in images

Detect text in an image using optical character recognition (OCR) and extract the recognized words into a machine-readable character stream. Analyze images to detect embedded text, generate character streams, and enable searching. Save time and effort by taking photos of text instead of copying it.

Preview: Read handwritten text from images

Detect and extract handwritten text from notes, letters, essays, whiteboards, forms, and other sources. Reduce paper clutter and be more productive by taking photos of handwritten notes instead of transcribing them, and make the digital notes easy to find by implementing search. Handwritten OCR works with different surfaces and backgrounds, such as white paper, yellow sticky notes, and whiteboards.

ABBYY FineReader Engine

The software development kit ABBYY FineReader Engine allows software developers to create applications that extract textual information from paper documents, images or displays. This AI-powered OCR SDK provides your application with excellent text recognition, PDF conversion, and data capture functionalities, enabling it to convert scans into searchable PDF, Word or Excel documents, and access data on photos or screenshots.

Available for Windows, Linux, Mac OS and embedded platforms. On premises or in the Cloud.

Highest OCR accuracy

Provide your customers with the outstanding OCR quality available in ABBYY FineReader. Leading providers of ECM systems, document imaging and capture solutions, RPA solutions, as well as a scanner and MFP manufacturers trust ABBYY OCR technology.

Increased value

Expand your solutions. ABBYY FineReader Engine enables your software to convert TIFF libraries into PDF, PDF/A, Word or other formats, and accurately extract field values. Develop on Windows, Linux or Mac and offer your software in the Cloud or on VM platforms.

Faster time to market

Outperform your competition and get premium OCR solutions to the market quickly – with OCR toolkit’s powerful APIs. Easily integrate world-class OCR features with the help of pre-configured tools, parameters, code samples and-printed and other components.

The comprehensive set of recognition technologies

With OCR toolkit integration, applications can extract machine printed text in over 200 languages as well as hand-printed text, optical marks, and barcode values.

Powerful PDF processing tools

Versatile APIs allow processing many PDF types and converting scanned documents, TIFFs, JPEGs or image-only PDFs into different searchable PDF and PDF/A files.

Artificial Intelligence and Machine Learning

AI, ML, and other advanced technologies provide outstanding recognition accuracy for multi-language documents and deliver searchable and editable documents that reflect their originals.

Multi-core CPUs, Cloud and Virtual Machines support

Support for document processing in parallel threads on multi-core CPUs, deployment in the cloud and virtual environments guarantees fast, flexible and scalable processing.

OCR.space

The OCR.space Online OCR service converts scans or (smartphone) images of text documents into editable files by using Optical Character Recognition (OCR) technologies. It uses state-of-the-art modern OCR software. The recognition quality is comparable to commercial OCR SDK software (e. g. Abbyy).

Our Online OCR service is free to use, no registration necessary. We do not need your email address. Just upload your image files. The OCR software takes a JPG, PNG or PDF (PDF OCR with full support for multi-page documents and multi-column text). The only restriction is the images/PDF must not be larger than 5MB. Email us if you need to process larger documents. If you need to automate your OCR and process many documents, do not web-scrape this page. It is made for humans, not computers. Instead, please use the provided free OCR API .

Freelancing websites and how to start to do freelancing jobs

Websites:

How to start:

  • Most of those websites have international groups bidding on them at a fraction of the cost. And unless your skills are highly specialized you will have a tough time competing. Maybe you can choose the local business to start.
  • Finding a good, well-paid job on freelancing sites can be difficult, you just need to be patient. If your clients like your work, they will often reach out to you again with additional work.
  • You’ll have to do a few projects on the cheap initially, do the best job you can to make sure you get 5-star feedback. After a few months, people will start coming to you.
  • Reading the brief carefully, asking meaningful questions and responding with some context & ideas will really make you stand out.
  • Some clients like long meetings and meaningless phone calls, so you need to bill for the time of meetings and calls. 
  • Having a well thought out and prepared portfolio is key to landing great clients.
  • One of the most important things to know about freelancing is that not every client is a good client, some of them are not worth to contact.
  • Take a look at reviews of clients,  don’t just accept your first offer, don’t take clients that are brand new to the site. 

I bought a gaming laptop and Google provides a service called Colab, So now I can learn how to use deep learning.

Several days ago, I bought a gaming laptop to do some deep learning work. My girlfriend is very happy because now she can use the new gaming laptop play the Playerunknown battleground. And I’m happy because this laptop is much faster than my Mac pro several times when you are doing deep learning tasks.

I update all the codes from tensorflow and play the codes in the tutorials one by one. And I found out now Google provides a service called Colab. Our codes can run on Google’ VM with a GPU google provides.

But a lot of people find out their codes can’t run on Colab because the system often breaks by the error of out of memory. Turns out, Google may share memory and  GPUs between your different sessions. There are some codes can help understand how much memory is free for you.

Normally Google provides a Tesla K80 with 11GB memory, so when you get lucky you may will get this information:

And sometimes your memory almost  all is used, like this:

When the bad thing is happening, you can use command kill to free memory first:

You may need to wait for several minutes, it will kill your current runtime and after you connect to a new runtime, you may be lucky to have full memory unused.

When I try the example DCGAN from tensorflow tutorials, My Mac Pro  (3.7 GHz Quad-Core Intel Xeon E5, Two AMD FirePro D300 2048 MB) needs 255 seconds to finish one epoch.

Google Colab (Nvidia Tesla K80 11GB) needs 30 seconds to finish one epoch. 

My gaming laptop (Nvidia GeForce 1050 ti 4GB) needs 34 seconds to finish one epoch.

So, Google Colab is very useful, but when you run some tasks which took too long, Colab may disconnect and you may never connect to the original session, so you may need run it again and again. So I am happy that I bought my own gaming laptop. 

See also: https://stackoverflow.com/questions/48750199/google-colaboratory-misleading-information-about-its-gpu-only-5-ram-available