Lets say i have a matrix G, that matrix contains different double values. How exactly image function creates image out of it?
lets say my colormap is colormap(jet(256)), now what formulas are used by image function in order to derive R,G,B components for each element of my double matrix?
"Ernest Milenko" <email@example.com> wrote in message
> Lets say i have a matrix G, that matrix contains different double values.
> How exactly image function creates image out of it?
> lets say my colormap is colormap(jet(256)), now what formulas are used by
> image function in order to derive R,G,B components for each element of my
> double matrix?
Read the description of the CData property for image objects for a
description of how MATLAB uses your image data (potentially in conjunction
with the figure colormap) to determine what colors to display.
comp.soft-sys.matlab (CSSM) FAQ: http://matlabwiki.mathworks.com/MATLAB_FAQ
To contact Technical Support use the Contact Us link on
7 zip image format (or an image format with mixed file-image compression) I've posted this message previously on the 7-zip source forge forum,
but I think it's also correct to share it with you.
I really don't undestand why what i'm going to say doesn=B4t exist.
when Talking about image compression, we can divide in 2 groups, with
or without loss. I've tried the PNG format (lossless), and it seems to
work good. but something is missing. For example, take a simple bmp
i've picked the last photo, 900kb). Now Covert it to PNG, there is a
matrix formation hi, without the use of permutation. here i want to make a M matrix which contains 'n' numbers.
in this example number exits are(1,2,3,4,5).
M=1 1 1
1 1 2
1 1 3
1 1 4
1 1 5
1 2 2
1 2 3
1 2 4
1 2 5
1 3 3
1 3 4
1 4 4
2 2 2
2 2 3
2 2 4
2 3 3
2 3 4
3 3 3
help me pl...
double to image? After you convert an image to double precision, is there a way to convert it back to a typical image format and still show it using imshow? i tried multiplying by 255, but imshow (and assuming other techniques) fails from working
On 10-11-16 03:05 PM, Aron Sceidt wrote:
> After you convert an image to double precision, is there a way to
> convert it back to a typical image format and still show it using
> imshow? i tried multiplying by 255, but imshow (and assuming other
> techniques) fails from working
uint8() after multiplying by 255.
"Aron Sceidt" <sigarr...
diference between image and matrix hi im reading an image and then displaying it using imshow. however
im confused that the positions where detail is on the image do not
compare to the positions in the matrix. So if i have a binary image
and check in matrix position 5,5 i found a 1 indicating white pixel
but its black in the image display. why is this?
In what position are you finding it in on the displayed image?
> hi im reading an image and then displaying it using imshow. however
> im confused that the positions where detail is on the image do not
> compare to the positions in...
png images to other format? Hi
I have a monochrome .png image where it appears as all black when I use imshow. Is it the problem of matlab in reading png? If so, is there any to convert it in matlab to format like jpg? I got all zeros when I imread the image.
Below is the link to the image that I have uploaded
It is able to read in PNG files. Are you sure all the values are all
zero - have you looked at them in the variable editor? Maybe they're
just dark. Try this
ImageAnalyst <firstname.lastname@example.org> wrote in message <0...
reading non standard format images I have an .xri image file from Phillips Medical Systems. The format
consists of a header (128 bytes), containing information about the
pixel format in the file, and then the pixel data itself. There is no
gap between the header and pixel data. I am trying to read the file
byte by byte using fread but don't know how to convert pixel data bit
into an image. For example, the pixels are 2 byte signed integer
values. Please help!
save CMYK image into JPEG format Hi guys,
I've a problem with CMYK e JPEG file format:
I'm using python for develop a program which generate an image file
from a PIL RGB image.
the problem is when i must save my image CMYK into a JPEG file.
well, the result is that my new image is only black!
but if I save my file in a .tif file, I'll see it well.
I don't know why! I'm desperate! Please help me!!
In article <email@example.com>,
> the problem is when i must save my image CMYK into a JPEG file.
> well, the result is...
Convert a pdf to an image format with imagemagick Hi to all!!!
I'm trying to convert a pdf file into an image, for example JPG or PNG
format, with ImageMagick. I use the command line. For example: convert
header.pdf header.jpg. But I obtain a bad result. The jpg's quality is
very low. Why? I tried to use - quality 100 option but there isn't
improvement. I think also that this option isn't active for the pdf
conversion to an image format or not? I need some good ideas :D...
Thanks to all
<firstname.lastname@example.org> wrote in message
> Hi to all!!!
howto: add double border to layer (not image) How can i add a double border to a layer?
I've a script that adds a single border to a layer and some scripts
that adds double (or triple) borders around the image. But i want a
script / plugin to add a double border around a layer. Can someone
help me with this?
> How can i add a double border to a layer?
> I've a script that adds a single border to a layer and some scripts
> that adds double (or triple) borders around the image. But i want a
> script / plugin to add a double border around a layer. Can someone
> help me with this?
6 images in tile format(google maps) I want to know if there is a quicker way to add a Image into a frame
and tile it with others
eg perl.tk can add an image and i can set frames one by one, but the
code for the program is getting WAY!!!! to big (150 x 150 eg 5 km
square - i need 9 km square),
And with my code added to it, the program is all over the place and i
have over 1000 lines of code, i cant keep trace of......
Also on a foot note, can Serial be added to perl? can i read/write to
serial in perl and display its data in a label/text in perl.tk ??????
Quoth Dwayne Triffitt <email@example.com>:
> I want ...
what is native texture image format on graphics card? Is there any routine in the openGL API
that will return the native texture image
format on a graphics card? (By "texture
image format", I mean one of GL_RGB, GL_RGBA,
I have an nvidia GeForce FX 5200. My objective
is to invoke glTexSubImage2D and like methods
with the internalformat argument set to the native
> I have an nvidia GeForce FX 5200. My objective
> is to invoke glTexSubImage2D and like methods
> with the internalformat argument set to the native
There is not "the one" for...
2x2 "matrix" for 3 images Hello,
I would greatly appreciate if someone could tell me how to define a
block of 3 images, all identical in size, so that the layout looks
like a 2x2 matrix:, where the [2,2] item gathers the caption texts:
[[a)] ] [ [b)] ]
[ Image 1 ] [ Image 2 ]
[ ] [ ]
[ [c)] ] a)Caption 1
[ Image 3 ] b)Caption 2
[ ] c)Caption 3
# the first 2 images occupy a full \textwidth long row
# a box with the item a, b, or c is overlayed in the top left corner
of each image
# the captions of the 3 images are gathered in the bottom right
(should they be long, that is oc...
Text editor with equation formatting or image support I am trying to find a text viewer that will support somehow equations,
even better if images as well.
I tried HP Doc (it was in spanish), Navigator (I expected this one to
support images for some reason).
I wouldn't have a problem using the text editor that comes with the
49g+, when I save a txt file on it with an equation inside of it, when
I try to open it in word, or notepad, it isn't in a format where I
could really edit it and put it back and have it appear with the
equations... My goal is to be able to edit the equations in the text
file on my computer, either through notepad ...
convert structured matrix to double arrays? hmm? Situation:
I have a structured matrix <1x43>struct called "CW2005bank" which contains
sets of batch fermentation data.
This structured matrix contains 43 structured matrices of the form
<1x1>struct (i.e. 43 times.. <1x1><1x1><1x1>...etc.)
Each of these <1x1> structured matrices contains 4 columns of data (of
different row length, Y) which refer to a specific batch fermentation. Each
of these are called "ferm" (i.e. field: ferm is a <Yx4> matrix.
>>CW2005bank .......returns the following...........
New: Image Processing Toolbox for O-Matrix
Harmonic Software has released "IPT - The Image Processing
Toolbox for O-Matrix". IPT provides a comprehensive set of
functions for image manipulation and analysis. The IPT capabilities
include image file I/O, color space transformations, linear
image transformations, mathematical morphology, image enhancement, and
IPT is multi-threaded, uses SIMD technology, and is built with leading-
image processing algorithms to provide execution performance and
that far exceeds other toolbox and stand-alone image processing
View the IPT ben...
Khoros Visualization image ( .xv format) not recognized in MATLAB!! The Khoros Visualization image files are not recognized in MATLAB
version 7.6 (R2008a). << I use Windows XP >>
When i use the command
it says " unidentified file format"...
Anyone know to solve this problem?? or does Matlab doesn't support .xv
On Apr 7, 3:03=A0am, vivek_Wohlt=E4ter_:) <youshallfin...@gmail.com>
> The Khoros Visualization image files are not recognized in MATLAB
> version 7.6 (R2008a). =A0<< I use Windows XP >>
> When i use the command
Help reading a Fixed Format Card Image file I have a bunch of data that looks like this that I'm trying to figure
out how to read in values from it:
Columns 1-6 are an ID
Columns 7-8 are a card #
I then have a map file which tells me which card #/column positions
represent which variables. For example, VarA has a card # of 2 and a
column position of 10 so the value is 5.
I've been reading up on the INFILE statement f...
[News] Microsoft to Introduce Proprietary Image Format (WMP) Microsoft shows off JPEG rival
,----[ Quote ]
| If it is up to Microsoft, the omnipresent JPEG image format will
| be replaced by Windows Media Photo
The fight against standards. Last time it was Media Player when they
deviated. And they still have poor PNG support...
Can you imagine E-mails with WMP attachments, or WMP on the Web? *sigh*
If you ask me, the compression claims are an excuse and a case of bending the
Prepare for DRM's photos.
On Thu, 25...
From Matlab, how do I copy some cells(including formatting) and save as image file? From Matlab, how do I copy some cells(including formatting) and save
as image file?
I want to do that via COM or ActiveX server.
I know how to open and close the Excel sheet.
But what's the command in COM/ACTIVEX to copy a few cells
(rectangular shape, including formatting), and save as image?
You mean like you want to do a screen capture of the Excel window,
just like you'd do with alt-PrintScreen in Windows? But then you'd
have to find where in that image of the Excel window your cells of
interest were - might not be easy.
On Sep 24, 4:49=A0pm, ImageAnalyst &l...
Choosing a matrix library for image processing. Blitz++,MTL or others? I'll swictch from Matlab to C++. So I want to find a matrix library of
C++, Whitch can process images conveniently as Matlab does.
I've googled, and found that Blitz++ and MTL are popular and powerful.
I want to know whitch of them fit for image processing better.
Or have other choices?
Any suggestion whill be appreciated.
> I'll swictch from Matlab to C++. So I want to find a matrix library of
> C++, Whitch can process images conveniently as Matlab does.
> I've googled, and found that Blitz++ and MTL are popular and powerful.
> I want to kn...