File:Gold Spider SEM sample Sharp.jpg
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![File:Gold Spider SEM sample Sharp.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/9/91/Gold_Spider_SEM_sample_Sharp.jpg/371px-Gold_Spider_SEM_sample_Sharp.jpg?20110225130844)
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[edit]![](https://upload.wikimedia.org/wikipedia/commons/thumb/2/21/Matlab_Logo.png/25px-Matlab_Logo.png)
This diagram was created with MATLAB.
DescriptionGold Spider SEM sample Sharp.jpg |
English: A spider coated in gold to prepare it as a specimen for Scanning electron microscopy. This item was on display at the Australian Museum in Sydney, New South Wales, Australia.
Example of using three 2D discrete convolutions to sharpen an image. The filter used is shown. |
Date | (UTC) |
Source | |
Author |
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Camera location | 33° 52′ 27.08″ S, 151° 12′ 47.53″ E ![]() | View this and other nearby images on: OpenStreetMap | ![]() |
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% Filters picture using 2D finite discrete convolution. By Tinos.
clear
% User Input
File='AuSpider.jpg';
% Input
Pic=double(imread(File));
% Create Filter
% Filt=fspecial('gaussian',10,1); % Blur
Filt=fspecial('unsharp'); % Sharp
% Filter image
Pic2(:,:,1)=conv2(Pic(:,:,1),Filt);
Pic2(:,:,2)=conv2(Pic(:,:,2),Filt);
Pic2(:,:,3)=conv2(Pic(:,:,3),Filt);
Pic2=Pic2(2:end-1,2:end-1,:);
% Convert to integer
Pic=uint8(Pic);
Pic2=uint8(Pic2);
% Output
imtool(Pic2)
imwrite(Pic2,'AuSpider2.jpg');
This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: Sharpened as example of convolution.. The original can be viewed here: Gold Spider SEM sample.jpg: ![]()
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
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[edit]This image is a derivative work of the following images:
- File:Gold_Spider_SEM_sample.jpg licensed with Cc-by-sa-3.0, GFDL
- 2010-03-15T04:26:21Z 99of9 2876x2159 (1865707 Bytes) {{Information |Description={{en|1=A spider coated in gold to prepare it as a specimen for [[w:Scanning electron microscope|Scanning electron microscopy]]. This item was on display at the Australian Museum in Sydney, New Sout
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 13:08, 25 February 2011 | ![]() | 538 × 870 (96 KB) | Tinos (talk | contribs) | {{Information |Description={{en|1=A spider coated in gold to prepare it as a specimen for Scanning electron microscopy. This item was on display at the Australian Museum in Sydney, New South Wales, Australia.}} Example |
12:34, 25 February 2011 | ![]() | 538 × 870 (96 KB) | Tinos (talk | contribs) | {{Information |Description={{en|1=A spider coated in gold to prepare it as a specimen for Scanning electron microscopy. This item was on display at the Australian Museum in Sydney, New South Wales, Australia.}} Example |
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33°52'27.084"S, 151°12'47.527"E
25 February 2011
image/jpeg
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- PNG created with MATLAB
- Files with coordinates missing SDC location of creation (34° S, 151° E)
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- Self-published work
- Uploaded with derivativeFX
- Photographs by User:99of9
- Australia photographs taken on 2011-02-25