Saturday, October 14, 2017

Love Equations



https://www.wolframalpha.com

1) plot x^2 + ( 5y/4 - sqrt(abs(x)))^2 = 1
2) plot x^2 + ( y - sqrt(abs(x)))^2 = 2
3) plot x^2 + ( y - (abs(x))^(1/3) )^2 = 1
4) plot (x^2 + y^2 -1)^3 -x^2y^3 = 0


Tuesday, October 10, 2017

Installing Tensor Flow (Problems)


Main guide
https://www.tensorflow.org/install/install_sources

Cannot find bazel. Please install bazel.
Solution https://docs.bazel.build/versions/master/install-ubuntu.html

Monitoring Nvidia card

$watch -n 1 nvidia-smi #to obtain continuous updates without filling the terminal with output

$sudo pip install gpustat
$gpustat
 
$sudo pip install glances
$sudo pip install glances[gpu]
$glances

Resources:
[1] Cuda 7.5 http://developer.download.nvidia.com/compute/cuda/7.5/Prod/local_installers/cuda_7.5.18_linux.run
[2] Install Cuda 7.5 http://www.r-tutor.com/gpu-computing/cuda-installation/cuda7.5-ubuntu


Friday, October 06, 2017

Tuesday, September 19, 2017

Execute VTK Samples on ubuntu


VTK5.10
$locate vtkXOpenGLRenderWindow.cxx
$gedit  ... vtkXOpenGLRenderWindow.cxx
Uncomment next line
#define GLX_GLXEXT_LEGACY

$ CC=/usr/bin/gcc-5 CXX=/usr/bin/g++-5 cmake ..


cmake -DVTK_DIR=/home/DRIVE/Backup2018/Downloads2017/tools2/VTK5.10.1/build .

VTK7.1
$cmake -DVTK_DIR=/home/DRIVE/Downloads/tools/VTK7.1/build .

Resources
[1] How to write in vtk format https://github.com/arborworkflows/Visomics/blob/master/Base/voIOManager.cpp
[2] https://vtk.org/download/

Computer Graphics - Grid Structures



$sudo apt-get install freeglut3-dev
$sudo apt-get install libxmu-dev
$make

Resource:
[1] corner table exercice https://www.cc.gatech.edu/~lena007/cs4451_p2/corner_tab.html



Sunday, September 17, 2017

Books online repositories

Library Genesis

Resources:
[0] Main reference https://en.wikipedia.org/wiki/Library_Genesis
      http://93.174.95.27/ 
[1] Mathematic, Biology and others https://libgen.pw (*)
[2] Mathematic and others http://libgen.io (*)
[3] http://gen.lib.rus.ec/
[4] zlibrary https://b-ok.org/ 
[5] sci-hub.tw
[6] https://whereisscihub.now.sh/
[7] Art books https://www.artubook.com (*)

(*) My favorite list


https://marcusnunes.me/posts/livros-gratuitos-da-springer/

Wednesday, September 13, 2017

Español





'A ver' y 'haber' se pronuncian de la misma forma, pero es habitual confundirlas y utilizarlas de manera incorrecta a la hora de escribir. Por eso, a continuación procedemos a distinguirlas tal y como marca la Real Academia Española (RAE):


A ver: Se trata de la secuencia constituida por la preposición a y el infinitivo verbal ver. Se utiliza en los siguientes casos:
        Para pedir al interloculor que nos deje ver algo: - Mira mi coche. - ¿A ver?
        Para dejar claro una cierta expectación: A ver cuándo viene la ayuda.
        Para llamar la atención sobre algo: A ver, ¿por qué no no vinisteis ayer a casa?
        En los casos en los que equivale a 'claro' o 'naturalmente': ¡A ver! Estaremos allí sin falta.
        En los casos que lleva delante la conjunción si, expresa, bien expectación, curiosidad o interés, a veces también un reto; otras temor o sospecha; y deseo o mandato: ¡A ver si me traes lo que te he pedido!

Haber: Puede tratarse de un verbo o un sustantivo:
        Como verbo se emplea como auxiliar seguido de un participio, para formar los infinitivos compuestos de la conjugación: Debe haber faltado a clase.
        También como verbo se emplea como infinitivo del impersonal que indica la presencia o existencia de lo designado por el sustantivo que lo acompaña: En su casa debe haber mucho dinero.
        Como sustantivo masculino su significado es "conjunto de bienes o caudales de una persona": En su haber contaba con muchos títulos.

Sunday, September 10, 2017

Create Partition and Format for Fix HD



$sudo fdisk /dev/sdb #commands d, n, w
$sudo mkntfs /dev/sdb1
$mkfs.ntfs -f /dev/sdb1 

$dmesg | grep sd
 
$sudo lshw -C disk



Tuesday, September 05, 2017

Skype on Ubuntu and Centos

 
Skype on Ubuntu 16
 [1] http://ubuntuhandbook.org/index.php/2017/03/install-skype-5-0-for-linux-ubuntu-16-04/
 
 
Skype on Centos 6.5

When i tried install skype on centos 6.5 i received next message:
 
error: Failed dependencies:                                       
        alsa-lib >= 1.0.23 is needed by skype-4.2.0.13-fc16.i586  
        libQtWebKit.so.4 is needed by skype-4.2.0.13-fc16.i586    
        libstdc++.so.6(GLIBCXX_3.4.15) is needed by skype-4.2.0.13-fc16.i586
        qtwebkit is needed by skype-4.2.0.13-fc16.i586  
 
then i tried next commands and works very well. 
 
1) Install EPEL if you haven't already.
#yum install http://dl.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm

2) Download the RPM here
#wget http://www.bromosapien.net:8080/others/skype-4.2.0.11-4.el6.i686.rpm

3) Install it as so
#yum install skype-4.2.0.11-4.el6.i686.rpm

4) If you receive an error about a GPG key, you may import my key as necessary.
#wget http://www.bromosapien.net:8080/others/SYRKIT-GPG-KEY.pub
#rpm --import SYRKIT-GPG-KEY.pub
 

References:
[1] http://community.skype.com/t5/Linux/CentOS-RHEL-6-Skype-4-2-RPM-Installation-Steps/td-p/1740485

NVidia Titan X Card problem

 
#Grub Settings if doesn't starting
Push shift for stop grub and edit(e key)
Replace quit splash with nomodeset if video drive problems
F10 for start with new settings

#add repository 
sudo add-apt-repository ppa:graphics-drivers/ppa
sudo apt-get update
 
#remove previous drivers
$sudo apt-get purge nvidia-* 
 
titan@titan:~$ sudo apt-cache search nvidia-3
....

nvidia-340 - NVIDIA binary driver - version 340.102
nvidia-361 - Transitional package for nvidia-367
nvidia-361-dev - Transitional package for nvidia-367-dev

nvidia-367 - Transitional package for nvidia-375
nvidia-367-dev - Transitional package for nvidia-375-dev 

nvidia-370-dev - NVIDIA binary Xorg driver development files
nvidia-370 - NVIDIA binary driver - version 370.28
nvidia-375 - NVIDIA binary driver - version 375.66
nvidia-375-dev - NVIDIA binary Xorg driver development files
nvidia-378-dev - NVIDIA binary Xorg driver development files
nvidia-378 - NVIDIA binary driver - version 378.13

nvidia-381-dev - NVIDIA binary Xorg driver development files
nvidia-381 - NVIDIA binary driver - version 381.22
nvidia-384-dev - NVIDIA binary Xorg driver development files
nvidia-384 - NVIDIA binary driver - version 384.47



$sudo apt-get install nvidia-375  #After installation, execute next commands:
 
$sudo mv /usr/lib/nvidia-375/libEGL.so.1 /usr/lib/nvidia-375/libEGL.so.1.org
$sudo mv /usr/lib32/nvidia-375/libEGL.so.1 /usr/lib32/nvidia-375/libEGL.so.1.org
$sudo ln -s /usr/lib/nvidia-375/libEGL.so.375.39 /usr/lib/nvidia-375/libEGL.so.1
$sudo ln -s /usr/lib32/nvidia-375/libEGL.so.375.39 /usr/lib32/nvidia-375/libEGL.so.1
 
$sudo ldconfig  #for verify correct link
 
PD:
  We can't installed titan x on ubuntu 16, we replaced with Geforce 1070 
  We execute above instructions and that works.
 
Summary good commands:
$ lspci | grep VGA   #for verify nvidia series
$ lspci -vnn | grep -i VGA -A 12 #for verify kernel driver:nvidia  
$ glxinfo | grep OpenGL | grep renderer #for verify opengl 
 
References:
[1] https://askubuntu.com/questions/61396/how-do-i-install-the-nvidia-drivers/680826
[2] Instalar driver Nvidia manualmente no Ubuntu 16.04 (pt) https://linuxdicasesuporte.blogspot.com.br/2017/03/instalar-driver-nvidia-manualmente-no.html 
[3] Nvidia drivers on Ubuntu 14.04 http://www.binarytides.com/install-nvidia-drivers-ubuntu-14-04/ 
 

Wednesday, August 30, 2017

Friday, August 25, 2017

Computer Vision Laboratories & Courses



Labs:

Computer Vision Lab http://vision.ece.ucsb.edu/

Oxford https://www.robots.ox.ac.uk/~vgg/projects.html

University Central of Florida (Computer Vision -crowds dataset) http://vision.eecs.ucf.edu/

Courses:

1) Computer Vision: Algorithms and Applications http://szeliski.org/Book/ (2017)
2) University of California https://cseweb.ucsd.edu/classes/sp16/cse152-a/
3) Computer vision course https://courses.cs.washington.edu/courses/cse455/09wi/Lects/

Wednesday, July 26, 2017

Journals for Bio Informatics


https://scfbm.biomedcentral.com/track/pdf/10.1186/1751-0473-3-6?site=scfbm.biomedcentral.com

springer computer vision http://www.springer.com/computer/image+processing/journal/11263  11 8.2

IEEE http://signalprocessingsociety.org/publications-resources/ieee-transactions-image-processing 44 4.3
ELSEVIER Pattern recognition https://www.journals.elsevier.com/pattern-recognition/ 47 4.5
ELSEVIER Medical image analysis https://www.journals.elsevier.com/medical-image-analysis/ 56 4.1
IEEE Medical images https://ieee-tmi.org/ 68 3.9
ELSEVIER https://www.journals.elsevier.com/computer-vision-and-image-understanding/ 112 3.2
ELSEVIER https://www.journals.elsevier.com/image-and-vision-computing/ 165 2.6
ELSEVIER https://www.journals.elsevier.com/computer-vision-and-image-understanding/ 189 2.4



http://www.guide2research.com/journals/computer-vision


Ubuntu Forware port 80

  #!/bin/bash iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 8069 iptables -t nat -A PREROUTING -i eth0 -p tc...