how Converting pixel value(5) into bits(00000101)

for example: i want to convert the pixel value 244 result like a=[1 1 1 1 1 1 1 0].

Answer 1

[Walter Roberson]

dec2bin(244) - '0'

Or if you have the Signal Processing Toolkit, de2bi()

[ARJUN K P]

how to conver the result into array

[Walter Roberson]

The result is an array. For 244, the result is an array of size 1 x 8.

If you want to convert multiple values at the same time, you need to define what shape you want the output to be. For example if you were converting an image that was 127 x 255 then what shape do you want the result? Is the input 2D or 3D (RGB) ?

Answer 2

[Asha D L]

Hi..anyone please help me.. How to use qbits(quantum bits)in an image...i mean how to transfer a bit into qbits..i m going to three qbits like this(000, 001,010,011,100.101,110,111) .how to apply in a gray scale image..how can i change the entire pixels into qbits. please explain.

[Walter Roberson]

How many input bits are grouped together in order to produce one group of 3 qbits?

[Asha D L]

i m going to take 100*100 pixel size image .. bt i dont know how to grope and al

[Walter Roberson]

bits = reshape((dec2bin(YourImage) - '0').', 1, []);

Now arrange bits any way that is appropriate for your software. For example if 2 input bits are used to create one group of 3 qbits, then

lookup_table = [0 0 1; 0 1 0; 1 0 1; 1 1 0];

qbits = reshape( (lookup_table(bits(1:2:end) * 2 + bits(2:2:end) + 1, :)).', 1, []);

[Walter Roberson]

I would, however, point out that the largest known quantum computer in the world has only 53 qubits. Computers with 10000 qbits are not expected for many years yet.

https://www.technologyreview.com/2019/09/18/132956/ibms-new-53-qubit-quantum-computer-is-the-most-powerful-machine-you-can-use/

[Asha D L]

Thank you.. i tried this and all pixel got change..and i got the size of image is 1*120000 double . so when i doing the next process is showing error(Subscript indices must either be real positive integers or logicals). How can i rectify this.

[Walter Roberson]

You need to say more about how you want input pixels to be converted to qbits. Do you want each bit to be converted to 3 qbits, so that you your 100 x 100 input image is converted to 100 x 100 x 8 x 3? If so then which triple of qbits should an input 0 bit be converted to? Which triple of qbits should an input 1 bit be converted to?

What you have discussed so far sounds as if you expect to convert each input pixel (of 8 bits) into a single qbit that although being only a single qbit is at the same time all of the values 000 to 111 simultaneously.