Ultrasonic 3D scanner fail
Sunday, October 27, 2013Weeks ago I tried to make a ultrasonic radar like, but things didn't work out very well. I will post everything here soon.
Weeks ago I tried to make a ultrasonic radar like, but things didn't work out very well. I will post everything here soon.
% Copyright 2014 Érico Porto % Licensed under the Apache License, Version 2.0 (the "License"); % you may not use this file except in compliance with the License. % You may obtain a copy of the License at % http://www.apache.org/licenses/LICENSE-2.0 % Unless required by applicable law or agreed to in writing, software % distributed under the License is distributed on an "AS IS" BASIS, % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % See the License for the specific language governing permissions and % limitations under the License. vid = videoinput('winvideo', 1, 'YUY2_640x480'); preview(vid); pause(4); color_spectrum = ycbcr2rgb(getsnapshot(vid)); %correct the orientation binImg = im2bw(color_spectrum,0.24); I = bwlabel(binImg); a= regionprops(I,'MajorAxisLength','Area','Orientation'); [areaMaxArea, indexMaxArea]= max([a(:).Area]); angle = a(indexMaxArea).Orientation; color_spectrum = imrotate(color_spectrum,-angle,'bilinear','crop'); %now I want to get the main rectangle binImg = im2bw(color_spectrum,0.08); I = bwlabel(binImg); a= regionprops(I,'BoundingBox','Area'); [areaMaxArea, iMA]= max([a(:).Area]); subImage = imcrop(color_spectrum,round(a(iMA).BoundingBox)); %here I'm guessing the light wavelength! %I think I need to use 380nm and 750nm as my bounding XAxis=zeros(size(subImage,2),1); XAxis(1)=380.0; XAxis(length(XAxis))=750.0; %find blue - 472nm [intensity, blueI] = max(mean(subImage(:,:,3))); XAxis(blueI)=472.0; %find green - 532nm [intensity, greenI] = max(mean(subImage(:,:,2))); XAxis(greenI)=532.0; %find red - 685nm [intensity, redI] = max(mean(subImage(:,:,1))); XAxis(redI)=685.0; %Now I will run and fill the zeros... beginI=1; endI=blueI; for i = (beginI+1):(endI-1) XAxis(i)= XAxis(beginI) + ((XAxis(endI)-XAxis(beginI))/(endI-beginI)) * (i-beginI); end beginI=blueI; endI=greenI; for i = (beginI+1):(endI-1) XAxis(i)= XAxis(beginI) + ((XAxis(endI)-XAxis(beginI))/(endI-beginI)) * (i-beginI); end beginI=greenI; endI=redI; for i = (beginI+1):(endI-1) XAxis(i)= XAxis(beginI) + ((XAxis(endI)-XAxis(beginI))/(endI-beginI)) * (i-beginI); end beginI=redI; endI=length(XAxis); for i = (beginI+1):(endI-1) XAxis(i)= XAxis(beginI) + ((XAxis(endI)-XAxis(beginI))/(endI-beginI)) * (i-beginI); end %this ends, the wavelength vector is ready for use! figure(2); colormap(gray(256)); gray_spectrum=((double(subImage(:,:,1))+double(subImage(:,:,2))+double(subImage(:,:,3)))/3.0); image(gray_spectrum); figure(3); colormap(gray(256)); Grayimg_reversed=flipud(gray_spectrum); graph=mean( Grayimg_reversed ,1); %Finally I can plot a nice graph with meaningfull axis plot(XAxis,graph); pause(3); delete(vid);
Import Windows XP Mode into VirtualBox #while maintaining product activation:
- Download Windows XP Mode (WindowsXPMode_en-us.exe | MD5: bf3726d684d3acb98185665123c9efcf)
- Extract xpm from WindowsXPMode_en-us.exe with a file archiver like PeaZip Portable.
- Add .rar extension to xpm
- Extract VirtualXPVHD from xpm.rar
- Add .vdi extension to VirtualXPVHD
- Create new machine in VirtualBox, specifying VirtualXPVHD.vdi as the hard disk
- Once initial setup is complete, uninstall Virtual PC Integration Components from Add/Remove Control Panel
- Install Guest Additions (Devices > Install Guest Additions...)
- Shut down virtual machine
- Download pcbios.bin (MD5: 12ccdc652b30c6d1e307c6f7deff5d24) from VMLite and copy to a directory on host computer (e.g., C:\vm\)
- "C:\Program Files\Oracle\VirtualBox\VBoxMange.exe" setextradata vm-name "VBoxInternal/Devices/pcbios/0/Config/BiosRom" "c:\vm\pcbios.bin"
curl -O https://raw.github.com/pypa/pip/master/contrib/get-pip.py
python get-pip.py
pip install --upgrade google-api-python-client
pip install python-dateutil
pip install vobject
pip install parsedatetime
curl -O https://raw.github.com/insanum/gcalcli/master/gcalcli
chmod +x gcalcli
./gcalcli agenda
One of the challenges I give the schools I work with is this: “How can you make sure that every student who walks on graduation day is well Googled by his or her full name?”On a side, the gamification definition from the FTW book.
for ($i=50; $i -le 55; $i++)
{wget --wait=1 -r -P . -A png "http://xkcd-time.wikia.com/wiki/File:Time$i.png"}
'''
Copyright 2014 Érico Porto
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
'''
from __future__ import print_function
import httplib
def findEnzymeInCazy(enzyname):
conn = httplib.HTTPConnection("www.cazy.org", 80)
conn.connect()
conn.request('GET', "/search?tag=4&recherche=" + enzyname)
lines = conn.getresponse().read().split('\n')
for i,line in enumerate(lines):
if ( '<tr><td><a href="http://www.cazy.org/' in line ):
linkLine = lines[i]
j = linkLine.find( '"http://www.cazy.org/' ) + 21
k = linkLine.find( '.html"', j )
return linkLine[j:k] # beteween first and second double quotes
return None
f = open('saida.csv','w')
print("enzima ; rankdomal", file=f)
print("enzima ; rankdomal")
for line in open("enzylist.csv","r"):
pieces = line.split(";")
enzyname = pieces[0].strip()
enzyInCazy = findEnzymeInCazy(enzyname)
if ( enzyInCazy != None ):
print(enzyname.ljust(15) + '; ' + enzyInCazy.ljust(20), file=f)
print(enzyname.ljust(15) + '; ' + enzyInCazy.ljust(20))
else:
print(enzyname.ljust(15) + '; ' + "not found!", file=f)
print(enzyname.ljust(15) + '; ' + "not found!")
BAI68730
BAH05588
ACV62532
EAL90874
ABG47447
ACT04224
python .\enzymtable_simple.py enzima ; rankdomal BAI68730 ; GH57 BAH05588 ; GH94 ACV62532 ; GH94 EAL90874 ; GH13 ABG47447 ; GH18 ACT04224 ; GH51
from __future__ import print_function
import urllib2
from bs4 import BeautifulSoup
f = open('teste.txt','w')
page = urllib2.urlopen("http://kotaku.com/5991061/the-best+looking-isometric-games")
s = page.read()
page.close()
soup = BeautifulSoup(s)
txt = soup.find("div", "post-body").getText()
print(txt.encode('utf-8'), file=f)
f.close()
Every meeting has to have a leader, a stated purpose, a start and end time, and a valid reason for each and every person to be there. The leader documents conclusions, plans, action items, whatever, then follows up.
