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  • How to create Haar Cascade (xml) for using with OpenCV?

    - by inTagger
    If you familiar with OpenCV library, you know what is haar cascade image object detection. I mean image object detection like human face or something else. I have haar cascade xml for face detection, but i don't know how to create my own. I want to create Haar Cascade xml to detect simple bright circle light sources (i.e. flashing infrared light from TV remote control). So, how to create Haar Cascade (xml) for using with OpenCV?

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  • Html editor (WYSIWYG) for WinForms (C#)

    - by Raf
    Hi, As in the question. Do you know any good (it would be nice if free) WYSIWYG html editor for WinForms (C#)? There is only one requirement: it has to be manage code only (by this I mean, it can't use mshtml COM object (WebBrowser control)). I've found this: http://www.modeltext.com/html/ but there is no download/buy option. I will be really thankful for any answer

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  • how to create folder structure in documents folder of my iPhone app

    - by Ekra
    Hi friends, I have a folder structure in my server. I receive the folder structure in XML format. My query is :- 1) Can I create the same folder structure in documents folder of my iPhone app. 2) What would be the best approach whether to create folders at device documents folder or just read the XML and show the folders as we parse it(I mean no folder creation). Waiting for your reply

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  • Sunrise / set calculations

    - by dassouki
    I'm trying to calculate the sunset / rise times using python based on the link provided below. My results done through excel and python do not match the real values. Any ideas on what I could be doing wrong? My Excel sheet can be found under .. http://transpotools.com/sun_time.xls # Created on 2010-03-28 # @author: dassouki # @source: [http://williams.best.vwh.net/sunrise_sunset_algorithm.htm][2] # @summary: this is based on the Nautical Almanac Office, United States Naval # Observatory. import math, sys class TimeOfDay(object): def calculate_time(self, in_day, in_month, in_year, lat, long, is_rise, utc_time_zone): # is_rise is a bool when it's true it indicates rise, # and if it's false it indicates setting time #set Zenith zenith = 96 # offical = 90 degrees 50' # civil = 96 degrees # nautical = 102 degrees # astronomical = 108 degrees #1- calculate the day of year n1 = math.floor( 275 * in_month / 9 ) n2 = math.floor( ( in_month + 9 ) / 12 ) n3 = ( 1 + math.floor( in_year - 4 * math.floor( in_year / 4 ) + 2 ) / 3 ) new_day = n1 - ( n2 * n3 ) + in_day - 30 print "new_day ", new_day #2- calculate rising / setting time if is_rise: rise_or_set_time = new_day + ( ( 6 - ( long / 15 ) ) / 24 ) else: rise_or_set_time = new_day + ( ( 18 - ( long/ 15 ) ) / 24 ) print "rise / set", rise_or_set_time #3- calculate sun mean anamoly sun_mean_anomaly = ( 0.9856 * rise_or_set_time ) - 3.289 print "sun mean anomaly", sun_mean_anomaly #4 calculate true longitude true_long = ( sun_mean_anomaly + ( 1.916 * math.sin( math.radians( sun_mean_anomaly ) ) ) + ( 0.020 * math.sin( 2 * math.radians( sun_mean_anomaly ) ) ) + 282.634 ) print "true long ", true_long # make sure true_long is within 0, 360 if true_long < 0: true_long = true_long + 360 elif true_long > 360: true_long = true_long - 360 else: true_long print "true long (360 if) ", true_long #5 calculate s_r_a (sun_right_ascenstion) s_r_a = math.degrees( math.atan( 0.91764 * math.tan( math.radians( true_long ) ) ) ) print "s_r_a is ", s_r_a #make sure it's between 0 and 360 if s_r_a < 0: s_r_a = s_r_a + 360 elif true_long > 360: s_r_a = s_r_a - 360 else: s_r_a print "s_r_a (modified) is ", s_r_a # s_r_a has to be in the same Quadrant as true_long true_long_quad = ( math.floor( true_long / 90 ) ) * 90 s_r_a_quad = ( math.floor( s_r_a / 90 ) ) * 90 s_r_a = s_r_a + ( true_long_quad - s_r_a_quad ) print "s_r_a (quadrant) is ", s_r_a # convert s_r_a to hours s_r_a = s_r_a / 15 print "s_r_a (to hours) is ", s_r_a #6- calculate sun diclanation in terms of cos and sin sin_declanation = 0.39782 * math.sin( math.radians ( true_long ) ) cos_declanation = math.cos( math.asin( sin_declanation ) ) print " sin/cos declanations ", sin_declanation, ", ", cos_declanation # sun local hour cos_hour = ( math.cos( math.radians( zenith ) ) - ( sin_declanation * math.sin( math.radians ( lat ) ) ) / ( cos_declanation * math.cos( math.radians ( lat ) ) ) ) print "cos_hour ", cos_hour # extreme north / south if cos_hour > 1: print "Sun Never Rises at this location on this date, exiting" # sys.exit() elif cos_hour < -1: print "Sun Never Sets at this location on this date, exiting" # sys.exit() print "cos_hour (2)", cos_hour #7- sun/set local time calculations if is_rise: sun_local_hour = ( 360 - math.degrees(math.acos( cos_hour ) ) ) / 15 else: sun_local_hour = math.degrees( math.acos( cos_hour ) ) / 15 print "sun local hour ", sun_local_hour sun_event_time = sun_local_hour + s_r_a - ( 0.06571 * rise_or_set_time ) - 6.622 print "sun event time ", sun_event_time #final result time_in_utc = sun_event_time - ( long / 15 ) + utc_time_zone return time_in_utc #test through main def main(): print "Time of day App " # test: fredericton, NB # answer: 7:34 am long = 66.6 lat = -45.9 utc_time = -4 d = 3 m = 3 y = 2010 is_rise = True tod = TimeOfDay() print "TOD is ", tod.calculate_time(d, m, y, lat, long, is_rise, utc_time) if __name__ == "__main__": main()

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  • What is difference between RegSvr and RegServer?

    - by Rahul
    Why there is difference in registering COM component for 32-bit and 64-bit? I mean at one point you have to use like this, RegSvr32 COM.exe or RegSvr32 COM.dll On 64-bit OS you have to use like, COM.exe /RegServer COM.exe /RegSvr Does /RegServer and /RegSvr are same or different. If different then what is the difference. Thanks in advance, Rahul

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  • Android WebView wrap-content

    - by Javadid
    Hi Friend... a simple question... Is it possible to Load a URL in a webView and resize it to fit the screen... i Mean i want to make the WebPage small so that the user doesnt need to scroll... IS it possible????

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  • WPF Binding Syntax Question

    - by Gurdas Nijor
    I've seen this syntax show up, and have tried to google for it's definition to no avail; what does it mean when a dp is bound this way? <Grid> <ContentControl Content="{Binding}"/> </Grid> I was under the assumption that you have to bind to some property on the DataContext, or another element, but this appears to bind to nothing.

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  • Problem registering a dll - Access Denied

    - by Vidar
    When trying to run regasm in Win2008 Server: regasm "C:\Program Files\FooProg\Bar.dll" /tlb:"C:\Program Files\FooProg\Bar.tlb" I get the following error: RegAsm : error RA0000 : An error occurred while saving the exported type library: Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED)) what does this mean

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  • A pattern matching an expression that doesn't end with specific sequence

    - by patryk
    I need a regex pattern which matches such strings that DO NOT end with such a sequence: \.[A-z0-9]{2,} by which I mean the examined string must not have at its end a sequence of a dot and then two or more alphanumeric characters. For example, a string /home/patryk/www and also /home/patryk/www/ should match desired pattern and /home/patryk/images/DSC002.jpg should not. I suppose this has something to do with lookarounds (look aheads) but still I have no idea how to make it. Any help appreciated.

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  • What is missing to Java API?

    - by Jack
    Hello, I started using Java years ago.. and I've always almost found everything I needed inside the standard API provided with JDK SE, apart from specific things that doesn't fit well inside a generic API.. so I was wondering: which are the most important things that the Java API is missing? With important I mean that you often needed them but had to search for a custom library, or things that usually are obviously included but not in Java's one..

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  • Compare NSArray with NSMutableArray adding delta objects to NSMutableArray

    - by Hooligancat
    I have an NSMutableArray that is populated with objects of strings. For simplicity sake we'll say that the objects are a person and each person object contains information about that person. Thus I would have an NSMutableArray that is populated with person objects: person.firstName person.lastName person.age person.height And so on. The initial source of data comes from a web server and is populated when my application loads and completes it's initialization with the server. Periodically my application polls the server for the latest list of names. Currently I am creating an NSArray of the result set, emptying the NSMutableArray and then re-populating the NSMutableArray with NSArray results before destroying the NSArray object. This seems inefficient to me on a few levels and also presents me with a problem losing table row references which I can work around, but might be creating more work for myself in doing so. The inefficiency seems to be that I should be able to compare the two arrays and end up with a filtered NSArray. I could then add the filtered set to the NSMutableArray. This would mean that I can simply append new data to the NSMutableArray instead of throwing everything out and re-populating. Conversely I would need to do the same filter in reverse to see if there are records that need removing from the NSMutableArray. Is there any method to do this in a more efficient manner? Have I overlooked something in the docs some place that refers to a simpler technique? I have a problem when I empty the NSMutableArray and re-populate in that any referencing tables lose their selected row state. I can track it and re-select it, but my theory is that using some form of compare and adding objects and removing objects instead of dealing with the whole array in one block might mean I keep my row reference (assuming the item isn't deleted of course). Any suggestions or help much appreciated. Update Would it be just as fast to do a fast enumeration over each comparing each line item as I go? It seems like an expensive operation, but with the last fast enumeration code it might be pretty efficient...

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  • Problem with pageviewer webpart in sharepoint2010

    - by nagendra
    Hello I am using a pageviewer webpart to display a .htm page which is present in a document library in sharepoint 2010. It is asking me to download the page instead of diplaying in the page But in MOSS 2007 it is working fine(I mean it is displaying in the page) Please suggest me the solution Thanks in advance.

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  • Understanding MQ Series bindings files

    - by Marcus
    Our Java app writes to MQ Series queues via a Weblogic JMS Message Bridge. The actual MQ Series connection/queue details are stored in the MQ Series .bindings file on the app server. I've never really got my head around the bindings file and what all the entries mean. Can anyone provide guidance to understand this file?

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  • Seeking a simultaneous fade and blur effect using JQuery or Javascript

    - by Heath Waller
    Can anyone think of a way to simulate the fade/blur flash effect used in the following website: http://www.frenchlaundry.com/ (image fades and blurs on hover, while text fades in simultaneously) using JQuery? I am looking to have this whole chain of effects happen on load or when the DOM is ready (instead of on hover). And by blur, I mean a gaussian-type of blur - possibly using Pixastic (?) I am really new at this, so please be gentle :) Thank you.

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  • Lucene multiple indexes : Normalize document scores??

    - by Roey
    Hi All. Suppose I've got multiple lucene indexes (not replicas) on several PC's. I query each index and then merge the results. Is there any way to normalize the document scores so that I could sort by score (relevance)? I mean, the scores for document A from index A would not be comparable with document B from index B, unless I do some sort of normalization.... not so? Thanks Roey

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  • Please give the solution of the following programs in R Programming

    - by NEETHU
    Table below gives data concerning the performance of 28 national football league teams in 1976.It is suspected that the no. of yards gained rushing by opponents(x8) has an effect on the no. of games won by a team(y) (a)Fit a simple linear regression model relating games won by y to yards gained rushing by opponents x8. (b)Construct the analysis of variance table and test for significance of regression. (c)Find a 95% CI on the slope. (d)What percent of the total variability in y is explained by this model. (e)Find a 95% CI on the mean number of games won in opponents yards rushing is limited to 2000 yards. Team y x8 1 10 2205 2 11 2096 3 11 1847 4 13 1803 5 10 1457 6 11 1848 7 10 1564 8 11 1821 9 4 2577 10 2 2476 11 7 1984 12 10 1917 13 9 1761 14 9 1709 15 6 1901 16 5 2288 17 5 2072 18 5 2861 19 6 2411 20 4 2289 21 3 2203 22 3 2592 23 4 2053 24 10 1979 25 6 2048 26 8 1786 27 2 2876 28 0 2560 Suppose we would like to use the model developed in problem 1 to predict the no. of games a team will win if it can limit opponents yards rushing to 1800 yards. Find a point estimate of the no. of games won when x8=1800.Find a 905 prediction interval on the no. of games won. The purity of Oxygen produced by a fractionation process is thought to be percentage of Hydrocarbon in the main condenser of the processing unit .20 samples are shown below. Purity(%) Hydrocarbon(%) 86.91 1.02 89.85 1.11 90.28 1.43 86.34 1.11 92.58 1.01 87.33 0.95 86.29 1.11 91.86 0.87 95.61 1.43 89.86 1.02 96.73 1.46 99.42 1.55 98.66 1.55 96.07 1.55 93.65 1.4 87.31 1.15 95 1.01 96.85 0.99 85.2 0.95 90.56 0.98 (a)Fit a simple linear regression model to the data. (b)Test the hypothesis H0:ß=0 (c)Calculate R2 . (d)Find a 95% CI on the slope. (e)Find a 95% CI on the mean purity and the Hydrocarbon % is 1. Consider the Oxygen plant data in Problem3 and assume that purity and Hydrocarbon percentage are jointly normally distributed r.vs (a)What is the correlation between Oxygen purity and Hydrocarbon% (b)Test the hypothesis that ?=0. (c)Construct a 95% CI for ?.

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  • What is wrong with ToLowerInvariant()?

    - by JL
    I have the following line of code: var connectionString = configItems.Find(item => item.Name.ToLowerInvariant() == "connectionstring"); VS 2010 Code analysis is telling me the following: Warning 7 CA1308 : Microsoft.Globalization : In method ... replace the call to 'string.ToLowerInvariant()' with String.ToUpperInvariant(). Does this mean ToUpperInvariant() is more reliable?

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  • Cross-platform DirectShow alternatives for real life graph

    - by Ole Jak
    Today I have such graph. I run it on windows I need some easy crossplatform DirectShow like alternative where to reconstruct such graph will not be a hard task. Where can I get such alternative? *(and If you can presenta way to reconstruct such graph in It It would be grate!) BTW: By crossplatform I mean Linux Mac and Windows compatible, By using SampleGrabber I ment I need to be able to get data from that step of graph from my programm and I use VirtualCamera from here soundmorning.com/download.php

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  • Detecting REFERRER 301 redirects in AwStats

    - by Riccardo
    About six months ago, I have moved a website to a new domain, and helped migration using 301 redirects into .htaccess of the old domain. This morning I was looking at AwStats log of the new domain, and was surpised to notice that in the "HTTP Status codes"section, 301 redirects score 77% of the whole codes (seems 200 are not tracked here). So, what is the proper meaning of the 301 code in those stats? Does it mean that 77% of traffic is incoming (referrer) from 301 redirects or?

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