Beantwortet
Performing Edge Detection using a Webcam using Image Acquistion and Computer Vision Toolboxes
A VideoDevice object never runs out of data to return since it can always capture another frame. Because of this, there is no is...

fast 13 Jahre vor | 0

| akzeptiert

Beantwortet
How can I zoom into preview window while updating
You can change the ROI by setting the ROIPosition property. The IMAQTool GUI will allow you to do this interactively.

fast 13 Jahre vor | 0

Beantwortet
Image Acquisition Camera - High Speed - Fast Capture
Your question is a little vague, but I think that this <http://www.mathworks.com/help/imaq/examples/acquiring-a-single-image-in-...

etwa 13 Jahre vor | 0

Beantwortet
Image Acquisition - preview is fast, snapshot is slow?
I think that this example might help with your issue: http://www.mathworks.com/help/imaq/examples/acquiring-a-single-image-in-a-...

etwa 13 Jahre vor | 1

Gelöst


Renaming a field in a structure array
MATLAB has a <http://www.mathworks.com/help/techdoc/ref/setfield.html setfield> and a <http://www.mathworks.com/help/techdoc/ref...

etwa 13 Jahre vor

Gelöst


Function Iterator
Given a handle fh to a function which takes a scalar input and returns a scalar output and an integer n >= 1, return a handle f...

etwa 13 Jahre vor

Beantwortet
Camera access problem in matlab
Image Acquisition Toolbox does not support these cameras and I can't find any indication that PPT Vision provides MATLAB support...

etwa 13 Jahre vor | 0

Beantwortet
imaqtool + firewire camera (dcam driver) = strange artefact (see picture)
It looks like the Scout camera returns multi-byte data in little-endian format. This is somewhat common but the DCAM specificat...

etwa 13 Jahre vor | 2

Beantwortet
Recently I use image acquistion toolbox, the image captured is very gloomy
You're trying to display an image in the YCbCr color space (that's what the I420 in your videoinput line means) with a function ...

etwa 13 Jahre vor | 0

| akzeptiert

Beantwortet
Accessing two identical Logitech Cameras simultaneously ... Matlab freezes (for a while)
I've seen similar issues in the past which were caused by the camera drivers. Probably the simplest thing to do is configure th...

etwa 13 Jahre vor | 1

| akzeptiert

Beantwortet
imaqregister won't register third party Image Acquisition Toolbox adaptors
You do not need to call IMAQREGISTER on adaptors that the toolbox provides by default. In R2011b, the toolbox shipped with su...

etwa 13 Jahre vor | 1

Gelöst


Make a Palindrome Number
Some numbers like 323 are palindromes. Other numbers like 124 are not. But look what happens when we add that number to a revers...

etwa 13 Jahre vor

Gelöst


Summing Digits within Text
Given a string with text and digits, add all the numbers together. Examples: Input str = '4 and 20 blackbirds baked in a...

mehr als 13 Jahre vor

Gelöst


Trimming Spaces
Given a string, remove all leading and trailing spaces (where space is defined as ASCII 32). Input a = ' singular value deco...

mehr als 13 Jahre vor

Gelöst


De-dupe
Remove all the redundant elements in a vector, but keep the first occurrence of each value in its original location. So if a =...

mehr als 13 Jahre vor

Gelöst


Pascal's Triangle
Given an integer n >= 0, generate the length n+1 row vector representing the n-th row of <http://en.wikipedia.org/wiki/Pascals_t...

mehr als 13 Jahre vor

Gelöst


Return the largest number that is adjacent to a zero
This example comes from Steve Eddins' blog: <http://blogs.mathworks.com/steve/2009/05/27/learning-lessons-from-a-one-liner/ Lear...

mehr als 13 Jahre vor

Gelöst


Replace NaNs with the number that appears to its left in the row.
Replace NaNs with the number that appears to its left in the row. If there are more than one consecutive NaNs, they should all ...

fast 14 Jahre vor

Gelöst


Counting Money
Add the numbers given in the cell array of strings. The strings represent amounts of money using this notation: $99,999.99. E...

fast 14 Jahre vor

Gelöst


Balanced number
Given a positive integer find whether it is a balanced number. For a balanced number the sum of first half of digits is equal to...

fast 14 Jahre vor

Gelöst


Making change
Given an amount of currency, return a vector of this form: [100 50 20 10 5 2 1 0.5 0.25 0.1 0.05 0.01] Example: Input a = ...

fast 14 Jahre vor

Gelöst


Nearest Numbers
Given a row vector of numbers, find the indices of the two nearest numbers. Examples: [index1 index2] = nearestNumbers([2 5 3...

fast 14 Jahre vor

Gelöst


The Hitchhiker's Guide to MATLAB
Output logical "true" if the input is the answer to life, the universe and everything. Otherwise, output logical "false".

fast 14 Jahre vor

Gelöst


Duplicates
Write a function that accepts a cell array of strings and returns another cell array of strings *with only the duplicates* retai...

fast 14 Jahre vor

Beantwortet
Image Acquisition Toolbox: using the 'memory' part of 'disk&memory' logging to just record timestamps
You can't do what you want directly, i.e. there is no mode that says just log the time stamps. I would probably use the FramesA...

fast 14 Jahre vor | 0

Gelöst


Elapsed Time
Given two date strings d1 and d2 of the form yyyy/mm/dd HH:MM:SS (assume hours HH is in 24 hour mode), determine how much time, ...

fast 14 Jahre vor

Gelöst


Remove all the consonants
Remove all the consonants in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill'; Output s2 is 'a ...

fast 14 Jahre vor

Gelöst


Find the longest sequence of 1's in a binary sequence.
Given a string such as s = '011110010000000100010111' find the length of the longest string of consecutive 1's. In this examp...

fast 14 Jahre vor

Gelöst


Bullseye Matrix
Given n (always odd), return output a that has concentric rings of the numbers 1 through (n+1)/2 around the center point. Exampl...

fast 14 Jahre vor

Gelöst


Pangrams!
A pangram, or holoalphabetic sentence, is a sentence using every letter of the alphabet at least once. Example: Input s ...

fast 14 Jahre vor

Mehr laden