TUTCRIS - Tampereen teknillinen yliopisto

TUTCRIS

Combined local and global image enhancement algorithm

Tutkimustuotosvertaisarvioitu

Yksityiskohdat

AlkuperäiskieliEnglanti
OtsikkoElectronic Imaging
AlaotsikkoImage Processing: Algorithms and Systems XVI
KustantajaSociety for Imaging Science and Technology
DOI - pysyväislinkit
TilaJulkaistu - 2018
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
TapahtumaIS&T International Symposium on Electronic Imaging -
Kesto: 28 tammikuuta 20182 helmikuuta 2018

Julkaisusarja

Nimi
ISSN (elektroninen)2470-1173

Conference

ConferenceIS&T International Symposium on Electronic Imaging
Ajanjakso28/01/182/02/18

Tiivistelmä

We present a new image enhancement algorithm based on combined local and global image processing. The basic idea is to apply α-rooting image enhancement approach for different image blocks. For this purpose, we split image in moving windows on disjoint blocks with different size (8 by 8, 16 by 16, 32 by 32 and, i.e.). The parameter alfa for every block driven through optimization of measure of enhancement (EME). The resulting image is a weighted mean of all processing blocks. This strategy for image enhancement allows getting more contrast image with the following properties: irregular lighting and brightness gradient. Some experimental results are presented to illustrate the performance of the proposed algorithm.