IMAGE PROCESSING APPARATUS AND METHOD

IMAGE PROCESSING APPARATUS AND METHOD

PROBLEM TO BE SOLVED: To provide an image processing apparatus capable of nonlinearly transforming luminance and saturation independently without changing any hue, and capable of improving the image quality when the nonlinear transformation of a relatively dark image is performed. SOLUTION: A transf...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: HIZUME TARO, HOSHINO KOICHI, YADA MANABU, SUMITANI KAZUNORI
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue
container_start_page
container_title
container_volume
creator HIZUME TARO
HOSHINO KOICHI
YADA MANABU
SUMITANI KAZUNORI
description PROBLEM TO BE SOLVED: To provide an image processing apparatus capable of nonlinearly transforming luminance and saturation independently without changing any hue, and capable of improving the image quality when the nonlinear transformation of a relatively dark image is performed. SOLUTION: A transformation coefficient calculation unit 7 calculates a luminance transformation coefficient and a saturation transformation coefficient which should be used for nonlinear transformation processing of each targeted pixel which is a processing target pixel in an image signal. A signal level transforming unit 9 nonlinearly transforms a pixel signal of the targeted pixel on the basis of the luminance transformation coefficient and the saturation transformation coefficient. The signal level transforming unit 9 respectively changes the luminance and the saturation in accordance with the luminance transformation coefficient and the saturation transformation coefficient. Thereby, the luminance and the saturation are separately transformed without changing any hue. A value corresponding to the luminance transformation coefficient and smaller than the luminance transformation coefficient can be obtained as the saturation transformation coefficient. Accordingly, even when performing the nonlinear transformation processing for a dark image, saturation transformation as well as luminance transformation are performed. COPYRIGHT: (C)2011,JPO&INPIT
format Patent
fullrecord <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_JP2011023774A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>JP2011023774A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_JP2011023774A3</originalsourceid><addsrcrecordid>eNrjZFD19HV0d1UICPJ3dg0O9vRzV3AMCHAMcgwJDVZw9HNR8HUN8fB34WFgTUvMKU7lhdLcDEpuriHOHrqpBfnxqcUFicmpeakl8V4BRgaGhgZGxubmJo7GRCkCANzPI5s</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>IMAGE PROCESSING APPARATUS AND METHOD</title><source>esp@cenet</source><creator>HIZUME TARO ; HOSHINO KOICHI ; YADA MANABU ; SUMITANI KAZUNORI</creator><creatorcontrib>HIZUME TARO ; HOSHINO KOICHI ; YADA MANABU ; SUMITANI KAZUNORI</creatorcontrib><description>PROBLEM TO BE SOLVED: To provide an image processing apparatus capable of nonlinearly transforming luminance and saturation independently without changing any hue, and capable of improving the image quality when the nonlinear transformation of a relatively dark image is performed. SOLUTION: A transformation coefficient calculation unit 7 calculates a luminance transformation coefficient and a saturation transformation coefficient which should be used for nonlinear transformation processing of each targeted pixel which is a processing target pixel in an image signal. A signal level transforming unit 9 nonlinearly transforms a pixel signal of the targeted pixel on the basis of the luminance transformation coefficient and the saturation transformation coefficient. The signal level transforming unit 9 respectively changes the luminance and the saturation in accordance with the luminance transformation coefficient and the saturation transformation coefficient. Thereby, the luminance and the saturation are separately transformed without changing any hue. A value corresponding to the luminance transformation coefficient and smaller than the luminance transformation coefficient can be obtained as the saturation transformation coefficient. Accordingly, even when performing the nonlinear transformation processing for a dark image, saturation transformation as well as luminance transformation are performed. COPYRIGHT: (C)2011,JPO&amp;INPIT</description><language>eng</language><subject>CALCULATING ; COMPUTING ; COUNTING ; ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL ; PHYSICS ; PICTORIAL COMMUNICATION, e.g. TELEVISION</subject><creationdate>2011</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20110203&amp;DB=EPODOC&amp;CC=JP&amp;NR=2011023774A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,309,781,886,25568,76551</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20110203&amp;DB=EPODOC&amp;CC=JP&amp;NR=2011023774A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>HIZUME TARO</creatorcontrib><creatorcontrib>HOSHINO KOICHI</creatorcontrib><creatorcontrib>YADA MANABU</creatorcontrib><creatorcontrib>SUMITANI KAZUNORI</creatorcontrib><title>IMAGE PROCESSING APPARATUS AND METHOD</title><description>PROBLEM TO BE SOLVED: To provide an image processing apparatus capable of nonlinearly transforming luminance and saturation independently without changing any hue, and capable of improving the image quality when the nonlinear transformation of a relatively dark image is performed. SOLUTION: A transformation coefficient calculation unit 7 calculates a luminance transformation coefficient and a saturation transformation coefficient which should be used for nonlinear transformation processing of each targeted pixel which is a processing target pixel in an image signal. A signal level transforming unit 9 nonlinearly transforms a pixel signal of the targeted pixel on the basis of the luminance transformation coefficient and the saturation transformation coefficient. The signal level transforming unit 9 respectively changes the luminance and the saturation in accordance with the luminance transformation coefficient and the saturation transformation coefficient. Thereby, the luminance and the saturation are separately transformed without changing any hue. A value corresponding to the luminance transformation coefficient and smaller than the luminance transformation coefficient can be obtained as the saturation transformation coefficient. Accordingly, even when performing the nonlinear transformation processing for a dark image, saturation transformation as well as luminance transformation are performed. COPYRIGHT: (C)2011,JPO&amp;INPIT</description><subject>CALCULATING</subject><subject>COMPUTING</subject><subject>COUNTING</subject><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRICITY</subject><subject>IMAGE DATA PROCESSING OR GENERATION, IN GENERAL</subject><subject>PHYSICS</subject><subject>PICTORIAL COMMUNICATION, e.g. TELEVISION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2011</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFD19HV0d1UICPJ3dg0O9vRzV3AMCHAMcgwJDVZw9HNR8HUN8fB34WFgTUvMKU7lhdLcDEpuriHOHrqpBfnxqcUFicmpeakl8V4BRgaGhgZGxubmJo7GRCkCANzPI5s</recordid><startdate>20110203</startdate><enddate>20110203</enddate><creator>HIZUME TARO</creator><creator>HOSHINO KOICHI</creator><creator>YADA MANABU</creator><creator>SUMITANI KAZUNORI</creator><scope>EVB</scope></search><sort><creationdate>20110203</creationdate><title>IMAGE PROCESSING APPARATUS AND METHOD</title><author>HIZUME TARO ; HOSHINO KOICHI ; YADA MANABU ; SUMITANI KAZUNORI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2011023774A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2011</creationdate><topic>CALCULATING</topic><topic>COMPUTING</topic><topic>COUNTING</topic><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRICITY</topic><topic>IMAGE DATA PROCESSING OR GENERATION, IN GENERAL</topic><topic>PHYSICS</topic><topic>PICTORIAL COMMUNICATION, e.g. TELEVISION</topic><toplevel>online_resources</toplevel><creatorcontrib>HIZUME TARO</creatorcontrib><creatorcontrib>HOSHINO KOICHI</creatorcontrib><creatorcontrib>YADA MANABU</creatorcontrib><creatorcontrib>SUMITANI KAZUNORI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>HIZUME TARO</au><au>HOSHINO KOICHI</au><au>YADA MANABU</au><au>SUMITANI KAZUNORI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>IMAGE PROCESSING APPARATUS AND METHOD</title><date>2011-02-03</date><risdate>2011</risdate><abstract>PROBLEM TO BE SOLVED: To provide an image processing apparatus capable of nonlinearly transforming luminance and saturation independently without changing any hue, and capable of improving the image quality when the nonlinear transformation of a relatively dark image is performed. SOLUTION: A transformation coefficient calculation unit 7 calculates a luminance transformation coefficient and a saturation transformation coefficient which should be used for nonlinear transformation processing of each targeted pixel which is a processing target pixel in an image signal. A signal level transforming unit 9 nonlinearly transforms a pixel signal of the targeted pixel on the basis of the luminance transformation coefficient and the saturation transformation coefficient. The signal level transforming unit 9 respectively changes the luminance and the saturation in accordance with the luminance transformation coefficient and the saturation transformation coefficient. Thereby, the luminance and the saturation are separately transformed without changing any hue. A value corresponding to the luminance transformation coefficient and smaller than the luminance transformation coefficient can be obtained as the saturation transformation coefficient. Accordingly, even when performing the nonlinear transformation processing for a dark image, saturation transformation as well as luminance transformation are performed. COPYRIGHT: (C)2011,JPO&amp;INPIT</abstract><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language eng
recordid cdi_epo_espacenet_JP2011023774A
source esp@cenet
subjects CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
title IMAGE PROCESSING APPARATUS AND METHOD
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-17T03%3A29%3A58IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=HIZUME%20TARO&rft.date=2011-02-03&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EJP2011023774A%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true