Community Profile

# Steve Eddins

### The MathWorks, Inc.

964 total contributions since 2003

MATLAB user since 1987. MathWorker since 1993. Amateur French horn player. MATLAB design and development, image processing algorithms.

Image processing blog: https://blogs.mathworks.com/steve/

Deep learning blog: https://blogs.mathworks.com/deep-learning

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Submitted

Colormap Test Image
Test image for evaluating perceptual effectiveness of a colormap for visualizing sequential data

3 months ago | 4 downloads |

Responded

Re: What an idiotic decision!
Hi Petr, You seem to have arrived at several conclusions about our rationale and motivation and intellectual capacity in your p...

9 months ago | 7727 views

Submitted

Zone plate test image
imzoneplate.m creates a zone plate test image.

1 year ago | 6 downloads |

Submitted

im2html.m
Convert image pixels to HTML table showing pixel colors and values

1 year ago | 0 downloads |

Submitted

IMWRITESIZE Write image file with specified width and resolution
Write a TIFF or PNG image file with specified width (inches) and resolution (dpi).

1 year ago | 4 downloads |

Submitted

Visualize output of BWLABEL
The function VISLABELS is used to visualize the output of BWLABEL.

1 year ago | 35 downloads |

Submitted

Upslope area functions
Functions for computing and visualizing upslope area, influence map, dependence map

1 year ago | 4 downloads |

Submitted

Display pixels and pixel values
Display pixels and pixel values like impixelregion, but in an ordinary figure

1 year ago | 8 downloads |

Submitted

Hough accumulator bin pixels
Find the pixels in a binary image corresponding to a particular Hough transform bin

1 year ago | 8 downloads |

Submitted

Multidimensional interpolation with integer inputs
Multidimensional interpolation supporting integer inputs without converting to double

1 year ago | 0 downloads |

Submitted

Image overlay
Overlay a binary mask onto an image using a specified color

1 year ago | 81 downloads |

Submitted

Line-wrap a string
Break a string into multiple lines

1 year ago | 10 downloads |

The Bilinear Interpolation Embedded Matlab Function Vs Bilinear Interpolation 'Re-Written or Coded' Function
At least one significant difference between your code and imresize is that your code appears to use a different shift in the geo...

1 year ago | 0

Changes with array operations in 2016a prerelease vs 2016a?
No, you are not going crazy. We were trying some new behavior in the prerelease for some operators and functions. Testing reveal...

1 year ago | 2

| accepted

Display a struct as a table
Convert the string containing the date and time into a datetime value, and then it will display better in the table. aStruct...

1 year ago | 1

| accepted

Submitted

Image Graphs
Functions to create and visualize graphs based on image pixel neighbor relationships

2 years ago | 16 downloads |

How to export return value of bwboundaries to DXF file format?
B{1} returns a matrix containing the coordinate values of the first boundary. B{2} returns a matrix containing the coordinate va...

2 years ago | 0

Submitted

Assign Object Colormap

2 years ago | 2 downloads |

Bug eps, pdf matlab 2014b surface plot (contourf)
Hi Loïc, Prior to R2014b, the MATLAB graphics system used a different process, with a different set of vector primitives, for...

2 years ago | 0

| accepted

Responded

Re: How to select adjacent elements from an array?
These posts might be helpful: http://blogs.mathworks.com/steve/2007/03/28/neighbor-indexing/ http://blogs.mathworks.com/steve/...

2 years ago | 7525 views

Responded

Re: How to create a matrix of alternating 1's and 0's for any size
1 - (-1).^bsxfun(@plus,(1:n),(1:n)'))/2

2 years ago | 14614 views

Responded

Re: Bitshift
Double-precision numbers don't have enough bits in the mantissa to bitshift that far. Start with a uint64 value instead. a = ...

3 years ago | 1790 views

Responded

Re: how to create empty datetime array?
There are some advantages to having a real one. They are definitely more brightly colored than comp.soft-sys.matlab. Taking the...

3 years ago | 10696 views

Responded

Re: how to create empty datetime array?
Hilarious! And so true!

3 years ago | 10696 views

Responded

Re: Problem to solve Inverse Tan
Try expressing the angle on the right side of the == operator in radians instead of degrees.

3 years ago | 1614 views

Responded

Re: undocumented features of EZPLOT ?
What you have discovered is not a feature of ezplot. It's a general behavior of MATLAB that is sometimes referred to as "comman...

3 years ago | 1613 views

Responded

Re: morphological opening
An RGB image in MATLAB is simply a multidimensional array, M-by-N-by-3. imopen just interprets the input as a multidimensional ...

3 years ago | 1897 views

Responded

3 years ago | 2273 views

Serious problem with "createMask" function.
Here is some code illustrating how to use bwboundaries to get X-Y polygon vertices that work better for mask creation via create...

3 years ago | 1

| accepted

Serious problem with "createMask" function.
If you are clicking on the centers of the border pixels, then half of the border pixels lie inside the polygonal region you sele...

3 years ago | 1