Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,000

Hi guys

Is it possible to find out what numbers are in the very bottom of this picture using some sort of image analysis?

*Last edited by anonimnystefy (2014-04-09 07:41:47)*

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,860

How big is the original image? Did you try zooming in with an image viewer?

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

Offline

**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,000

Of course I did. It's too blurry.

That is the only available image.

*Last edited by anonimnystefy (2014-04-09 08:13:33)*

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,860

Did you google for image enhancement with mathematica?

This page might help:

http://blog.wolfram.com/2010/12/27/fixi … nvolution/

there are more.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

Offline

**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,000

Hi bobbym

I need text enhancement.

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,860

I thought you said you have an image. Text is an image too when it is part of a picture. Once it is enhanced you might be able to read it. The only thing I know to get text from an image is an OCR program. But if the image ( text ) is too faint or blurry for the human eye what chance does the OCR have? We are back to enhancing the image.

If you are convinced that there is text in the file itself then get a hex editor like winhex and extract it.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

Offline

**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,000

No, no, I meant in the image itself. But the link you posted seems to be for sharpening astronomical pictures...

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

Offline

**ShivamS****Member**- Registered: 2011-02-07
- Posts: 3,648

You want the codes without buying the cards? Used to do that with Pokemon.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,860

Do you know what a hex editor is?

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

Offline

I know whAt that is but it cannot be used to enhance images.

Thrre is a program called perfect resize...

'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

I'm not crazy, my mother had me tested.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,860

He does not want to enhance the image. I think he feels the number is in the binary code of the image itself. This is a job for a hex editor because they can find text strings very easily.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

Offline

Why would the file contain the string that way? (Unless it is metadata)

'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

I'm not crazy, my mother had me tested.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,860

When you do any reverse engineering the search for strings inside of binary files is very important. Olly is very good at finding them.

Why would the file contain the string that way?

Because in lots of file types ( almost all ) buried in the binary data will be a lot of text. This is always true unless the file has been packed in some way.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

Offline

you do not understand my point. For example, My award has the word 'Solved', but that does not necessarily mean that you'll get the word 'Solved' if you dissect the file with an hex editor. (Unless the designer has put that in the meta of the image)

'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

I'm not crazy, my mother had me tested.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,860

I agree, that is what I have been telling anonimnystefy. But to see if it is in the binary data of the file as text he must use a hex editor or something like it.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

Offline

that is unlikely. See for yourself.

If the numbers at the bottom of the card is the secret to some paid service, it is probable that they have cleverly destroyed that part

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

I'm not crazy, my mother had me tested.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,860

that is unlikely.

I agree but not for the reason you give below.

If the numbers at the bottom of the card is the secret to some paid service, it is probable that they have cleverly destroyed that part

That is where RE comes into play. Most of what they can do can be undone in under 10 minutes.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

Offline

The second argument was not a supportive argument to the first.

The second is a different argument but I can explain it.

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

I'm not crazy, my mother had me tested.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,860

Yes, they can encrypt and use packers such as Armadillo and they can obfuscate code but a good cracker can get around that.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

Offline

No encryption involved. they can simply remove the data from there.

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

I'm not crazy, my mother had me tested.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,860

They can if they know about any such thing. I am not saying it is possible because I have not seen the file but generally they are rather easy.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

Offline

What is easy?

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

I'm not crazy, my mother had me tested.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,860

Reverse engineering programs or just about anything else.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

Offline

Suppose they open the image in a image editor and fill the area with the numbers with a solid color. And fill it with some stupid patterns. What then?

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

I'm not crazy, my mother had me tested.

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,860

The text information is usually separate from other parts of a file. Changing the picture like that also would destroy the picture so what is the point. Also, 99 out of 100 people do not even know about that.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

Offline