OPTIMIZED METHOD FOR DETERMINING GREY SHADE IMAGE HISTOGRAM ON PARALLEL PROCESSING PLATFORMS

The invention relates to an optimized method for determining the grey shade image histogram on parallel processing platforms. According to the invention, the method consists in loading an image () to be processed, and if this image is a colour image () it is transformed into a grey shade image (), t...

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Hauptverfasser: MOCANU TEFAN, SARU DANIELA, HOSSU DANIELA, DOBRESCU RADU NICOLAE
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SARU DANIELA
HOSSU DANIELA
DOBRESCU RADU NICOLAE
description The invention relates to an optimized method for determining the grey shade image histogram on parallel processing platforms. According to the invention, the method consists in loading an image () to be processed, and if this image is a colour image () it is transformed into a grey shade image (), there is determined the histogram () of the image in grey shades, further on said image being saved in a data base () or transmitted to other processing blocks () in order to be used in real time, and if the image () to be processed is an image in grey shades, the histogram () is determined in a differentiated manner depending on the size of the analyzed image (), thereby resulting the fragmentation thereof, the analysis of each fragment being achieved independently in parallel manner () by using an extended capability graphics processing unit GPGPU (), then there is determined the histogram of each image fragment and the histogram of the initial image is obtained by summing all previously determined partial histograms. Invenţia se referă la o metodă optimizată de determinare a histogramei imaginilor în tonuri de gri, pe platforme de procesare paralelă. Metoda conform invenţiei constă în încărcarea unei imagini () de prelucrat şi dacă această este o imagine () color, se transformă într-o imagine () în tonuri de gri, se determină histograma () imaginii în tonuri de gri, aceasta urmând a fi salvată într-o bază de date () sau transmisă către alte blocuri () de prelucrare, pentru utilizare în timp real, iar dacă imaginea () de prelucrat este o imagine în tonuri de gri, determinarea histogramei () se face diferenţiat, în funcţie de dimensiunea imaginii () analizate, rezultând fragmentarea acesteia, analiza fiecărui fragment făcându-se independent, în mod paralel (), folosind o unitate de procesare grafică cu capabilităţi extinse, GPGPU (), apoi se determină histograma fiecărui fragment de imagine, iar histograma imaginii iniţiale se obţine prin însumarea histogramelor parţiale, determinate anterior.
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According to the invention, the method consists in loading an image () to be processed, and if this image is a colour image () it is transformed into a grey shade image (), there is determined the histogram () of the image in grey shades, further on said image being saved in a data base () or transmitted to other processing blocks () in order to be used in real time, and if the image () to be processed is an image in grey shades, the histogram () is determined in a differentiated manner depending on the size of the analyzed image (), thereby resulting the fragmentation thereof, the analysis of each fragment being achieved independently in parallel manner () by using an extended capability graphics processing unit GPGPU (), then there is determined the histogram of each image fragment and the histogram of the initial image is obtained by summing all previously determined partial histograms. 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Metoda conform invenţiei constă în încărcarea unei imagini () de prelucrat şi dacă această este o imagine () color, se transformă într-o imagine () în tonuri de gri, se determină histograma () imaginii în tonuri de gri, aceasta urmând a fi salvată într-o bază de date () sau transmisă către alte blocuri () de prelucrare, pentru utilizare în timp real, iar dacă imaginea () de prelucrat este o imagine în tonuri de gri, determinarea histogramei () se face diferenţiat, în funcţie de dimensiunea imaginii () analizate, rezultând fragmentarea acesteia, analiza fiecărui fragment făcându-se independent, în mod paralel (), folosind o unitate de procesare grafică cu capabilităţi extinse, GPGPU (), apoi se determină histograma fiecărui fragment de imagine, iar histograma imaginii iniţiale se obţine prin însumarea histogramelor parţiale, determinate anterior.</abstract><oa>free_for_read</oa></addata></record>
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subjects CALCULATING
COMPUTING
COUNTING
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
title OPTIMIZED METHOD FOR DETERMINING GREY SHADE IMAGE HISTOGRAM ON PARALLEL PROCESSING PLATFORMS
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