Image analysis to quantify image clarity of two printed speciments

$30-250 USD

Imefungwa

Imechapishwa

almost 6 years ago

$30-250 USD

Kulipwa wakati wa kufikishwa

I want a simple, reproducible image analysis method to compare four versions of a printed image to quantify the advantages of a new kind of paper. There two different images to consider: one a black and white grid (image A), and one a color image (image B, a collection of some color lines and two photos). With 4 papers to consider for each, the files are A1, A2, A3, and A4 for the first image, and B1, B2, B3, and B4 for the second image. Paper 1 is the new paper with better results. I would like some measure to show the clarity of the B&W image and some measure to show the color density or other useful measures for the color image. The images were all printed with the same printer but on different papers to give different results. I'm looking for ways to document the difference in color density and line crispness, etc., to highlight differences in the images in order to support one part of a patent. So I need not just the results, but a detailed description of how the results were obtained: what software was used and how. Ideal if it is public domain image analysis software or something not too expensive, but an expensive commercial system can also be used.

Image Processing

Kitambulisho cha mradi: 17208220

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3 mapendekezo

Mradi wa mbali

Inatumika 6 yrs ago

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3 wafanyakazi huru wana zabuni kwa wastani $125 USD kwa kazi hii

@TheAVashe

The main thing here is not an image processing task but "imaging". you need a lab setup to acquire the right image of these prints first. How? Prepare a dark room. Use a constant uniform source of white light, as white as possible. Keep the walls white, as white as possible. Use a good camera, mostly global shutter type. Switch off auto focus. Use the camera on a mount and focus manually. Set it on a pedestal and clamp the prints. Find a way not to disturb anything, don't even touch it between taking photographs of all the papers. THIS IA A HUGE CHALLENGE. Analysis Even the best software or professor cannot give you an algorithm that can analyse a better paper from the image. Image analysis is pure subjective. yes, tools can help you quantify some of the things like the contrast, dispersion etc using numbers. But, that is also dependent in the image itself, not the printout. Yes, basic stuff like color range, number of shades of black at the same pixel position (location of the paper). again for this DON'T TOUCH when the INAGING is in process. So, it's the INAGING that is super difficult here, not the analysis. As of writing in your paper, mention every care you'd taken for the imaging. You can use other types of photography like infrared etc. Do a survey for the best ways to image a printout for analysis. Thank you!

$310 USD ndani ya siku 4