Would it be possible to hide data in the last bits of each pixel of a...
Would it be possible to hide data in the last bits of each pixel of a GIF image by converting it to an array of RGB pixel values, changing the pixel values accordingly, and then converting the image back to GIF? Explain.
Homework Answers
The best approch to do this is is via the load() method in python which returns a pixel access object and this can be manipulate like an array:
from PIL import Image
ip = Image.open("xyz.png") #here there can be many different
formats.
pix = ip.load()
print ip.size #you will have to find the height and width of the
image
print pix[x,y] #now you have to get RGBA Value of the a pixel of an
image
pix[x,y] = value # Also you have to Set the RGBA Value of the image
(tuple)
ip.save("pqr.png") # now Save your modified pixels as png
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Would it be possible to hide data in the last bits of each pixel
of a...
In lectures we discussed how bitmap images are stored as a grid of pixel values. Each...
In lectures we discussed how bitmap images are stored as a grid of pixel values. Each pixel has a colour value, and colour can be encoded using the RGB encoding scheme. In lectures we also discussed using the RLE compression technique. Examples of the RLE technique being used to compress text were given. Instead of storing every single character individually, if there is a sequential run of identical characters, data on one character is stored along with a count of...
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C. When transmitting data, is it better to send 4 bits or 40 bits at a time and wh D. How would each of the following appear in hexadecimal: 1/VALUE1 DC H'74 2/VALUE2 DC H'-88 3/VALUE3 DC...
C. When transmitting data, is it better to send 4 bits or 40 bits at a time and wh D. How would each of the following appear in hexadecimal: 1/VALUE1 DC H'74 2/VALUE2 DC H'-88 3/VALUE3 DC PL4'1534' 4/VALUE4 DC CL3'
C. When transmitting data, is it better to send 4 bits or 40 bits at a time and wh D. How would each of the following appear in hexadecimal: 1/VALUE1 DC H'74 2/VALUE2 DC H'-88 3/VALUE3 DC PL4'1534' 4/VALUE4...
The ACME Manufacturing Company has hired you to help automate their production assembly line. Cameras have...
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in java Original: Sound Visualization Write a program that uses StdAudio and Picture to create an...
in
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use MATLAB to upload the following: an image that you want to process (can be taken...
use MATLAB to upload the following:
an image that you want to process (can be taken yourself or
downloaded from the internet)
a script that processes the image in TWO ways.
manipulates the colors
averages pixels together
Please make sure the script displays the images (like how I did
with the 40 and 80 pixel averaging) so I can easily compare them to
the original. Make sure to COMMENT your code as well.
Homework 13 Please upload the following: an...
In lectures we discussed how bitmap images are stored as a grid of pixel values. Each pixel has a colour value, and colour can be encoded using the RGB encoding scheme. In lectures we also discussed using the RLE compression technique. Examples of the RLE technique being used to compress text were given. Instead of storing every single character individually, if there is a sequential run of identical characters, data on one character is stored along with a count of...
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C. When transmitting data, is it better to send 4 bits or 40 bits at a time and wh D. How would each of the following appear in hexadecimal: 1/VALUE1 DC H'74 2/VALUE2 DC H'-88 3/VALUE3 DC PL4'1534' 4/VALUE4 DC CL3'
C. When transmitting data, is it better to send 4 bits or 40 bits at a time and wh D. How would each of the following appear in hexadecimal: 1/VALUE1 DC H'74 2/VALUE2 DC H'-88 3/VALUE3 DC PL4'1534' 4/VALUE4...
The ACME Manufacturing Company has hired you to help automate
their production assembly line. Cameras have been placed above a
conveyer belt to enables parts on the belt to be photographed and
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2) (25 points) Consider a hypothetical mieroprocessor generating 16-bit addresses with 32-bit data accesses (i.e. each access retrieves 32 bits for each address). a. What is the maximum memory address space (i.e., mmber of addresses) that the processor can access directly? What is the maximum memory capacity (in bytes) for this microprocessor? b. c. What is the last memory address that the CPU can access? Write your answer in decimal. What is the maximum memory address space that the processor...
in
java
Original: Sound Visualization Write a program that uses StdAudio and Picture to create an interesting two-dimensional color visualization of a sound file while it is playing. Be creative! Additional Notes: double[] data = StdAudio.read(<filename>); -> Takes a sound file and store it as a 2D array of real numbers. Picture pic = new Picture(300,200); -> Creates a picture 300 pixels wide and 200 pixels high Color c= new Color(<red>,<green>,<blue>); -> Each value of <red>, <green>, <blue> is between...
use MATLAB to upload the following:
an image that you want to process (can be taken yourself or
downloaded from the internet)
a script that processes the image in TWO ways.
manipulates the colors
averages pixels together
Please make sure the script displays the images (like how I did
with the 40 and 80 pixel averaging) so I can easily compare them to
the original. Make sure to COMMENT your code as well.
Homework 13 Please upload the following: an...
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