Hello everyone,
Why dont you start using the INBreast database?
http://www.sciencedirect.com/science/article/pii/S107663321100451X
Best regards,
Inês Domingues
-----------------------------------------------------------------------------------------------
PhD student
INESC TEC and Faculdade de Engenharia, Universidade do Porto
https://sites.google.com/site/indezitindezit/
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On Wed, Sep 26, 2012 at 6:58 AM, Mehul Sampat <
mehul....@ieee.org> wrote:
> Safi,
> LJPEG is a compressed file (using lossless JPEG compression).
>
http://marathon.csee.usf.edu/Mammography/DDSM/case_description.html#LJPEGFILE
>
> you need to uncompress it first before trying to load it with the code
> snippet from my previous email.
> an old version of the un-compression code is available here:
>
ftp://figment.csee.usf.edu/pub/DDSM/software/bin/jpeg.
>
> if the compression works it will create a file called
> C_0029_1.LEFT_CC.LJPEG.1
> let us know if this works for you.
> good luck,
> Mehul
>
>
> On Tue, Sep 25, 2012 at 7:08 PM, SAFI ULLAH Marwat <
safi...@gmail.com>
> wrote:
>>
>> Hello guys,
>>
>> I have the same problem in extracting the image files. I found two things
>> while using the matlab script provided in the thread:
>> No.1. The read image have less dimentiones than the given ones. for
>> example for the case benign_01\case0029\C_0029_1.LEFT_CC.LJPEG the ics file
>> reads the lines (rows) as 4648 while columns as 2672 but when I read the
>> file it shows the size of the image as 4648x1772
>>
>> No.2. the decompressed image carries no information, i mean it is just a
>> collection of random texturel dots.
>>
>> any help will be highly counted on.
>>
>> Regards,
>>
>> Safi
>>
>>
>>
>> On Tue, Jan 3, 2012 at 2:08 PM, Praful Agrawal <
pra...@iiitd.ac.in>
>> wrote:
>>>
>>> It worked..thanks a lot
>>>
>>> On Jan 3, 1:56 pm, Mehul Sampat <
mehul.sam...@ieee.org> wrote:
>>> > ps: oops the first line in the code snippet should be: fid =
>>> > fopen(filename,'r','ieee-be');
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>> > On Tue, Jan 3, 2012 at 12:47 AM, Mehul Sampat <
mehul.sam...@ieee.org>
>>> > wrote:
>>> > > Hi Praful,
>>> >
>>> > > The uncompressed images should not have a lot of noise. Most likely
>>> > > it
>>> > > could be
>>> > > a big endian vs. little endian issue. (I believe you need to read it
>>> > > in as
>>> > > big-endian)
>>> > > here is a snippet of matlab code to read the *.1 file. (you can
>>> > > change it
>>> > > to c if needed)
>>> > > -------------------------------------------
>>> > > fid = fopen(fid,'r','ieee-be');
>>> > > image = fread(fid,[COLS ROWS],'short');
>>> > > image = image';
>>> > > image = uint16(image);
>>> > > -------------------------------------------
>>> > > where COLS,ROWS is the number of columns/rows in the image; get this
>>> > > info
>>> > > from *.ics file.
>>> > > Please let the group know if this works for you.
>>> > > Good luck
>>> > > Mehul
>>> >
>>> > > On Tue, Jan 3, 2012 at 12:26 AM, Praful Agrawal
>>> > > <
praf...@iiitd.ac.in>wrote:
>>> >
>>> > >> Hi all,
>>> >
>>> > >> I have downloaded DDSM database, but the decompressed images have a
>>> > >> lot of noise in it. I am new to this area. Please help me.
>>> >
>>> > >> Thanks and Regards,
>>> > >> Praful
>>> >
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