Method for identifying color of flue-cured tobacco
The invention provides a method for identifying the color of primary flue-cured tobacco. The method comprises the following steps: 1) taking the back surface of the primary flue-cured tobacco as an identification surface; 2) determining the length and the main vein of the flue-cured tobacco leaves;...
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| creator | XU ZHAOMEI LI XIANGWEI FENG JIAWEI XIE XINQIAO WU XIANLU FU HAO LIU HAIYE PENG REN ZHANG QIANZI LU JUNPING GAO YUNCAI WANG ZHENGXU DENG SHAOWEN ZHU YUNCONG |
| description | The invention provides a method for identifying the color of primary flue-cured tobacco. The method comprises the following steps: 1) taking the back surface of the primary flue-cured tobacco as an identification surface; 2) determining the length and the main vein of the flue-cured tobacco leaves; 3) uniformly selecting three position points on the main pulse from the stem end of the main pulse to the tip end of the main pulse; 4) taking the main pulse as a symmetry axis, selecting six points as measuring points at positions which are 2cm-4cm away from the two sides of the three position points, and measuring the reflection spectrum of the back surface of the primary flue-cured tobacco through a spectrophotometer; (5) respectively carrying out second derivative processing on the reflection spectrums of the measuring points to obtain a second derivative value at 500nm, a second derivative value at 670nm, a second derivative value at 520nm and a second derivative value at 640nm; (6) obtaining the color scale o |
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The method comprises the following steps: 1) taking the back surface of the primary flue-cured tobacco as an identification surface; 2) determining the length and the main vein of the flue-cured tobacco leaves; 3) uniformly selecting three position points on the main pulse from the stem end of the main pulse to the tip end of the main pulse; 4) taking the main pulse as a symmetry axis, selecting six points as measuring points at positions which are 2cm-4cm away from the two sides of the three position points, and measuring the reflection spectrum of the back surface of the primary flue-cured tobacco through a spectrophotometer; (5) respectively carrying out second derivative processing on the reflection spectrums of the measuring points to obtain a second derivative value at 500nm, a second derivative value at 670nm, a second derivative value at 520nm and a second derivative value at 640nm; (6) obtaining the color scale o</description><language>chi ; eng</language><subject>CALCULATING ; COLORIMETRY ; COMPUTING ; COUNTING ; ELECTRIC DIGITAL DATA PROCESSING ; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL ; MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT ; MEASURING ; PHYSICS ; RADIATION PYROMETRY ; TESTING</subject><creationdate>2022</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&date=20220603&DB=EPODOC&CC=CN&NR=114581537A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25562,76317</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220603&DB=EPODOC&CC=CN&NR=114581537A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>XU ZHAOMEI</creatorcontrib><creatorcontrib>LI XIANGWEI</creatorcontrib><creatorcontrib>FENG JIAWEI</creatorcontrib><creatorcontrib>XIE XINQIAO</creatorcontrib><creatorcontrib>WU XIANLU</creatorcontrib><creatorcontrib>FU HAO</creatorcontrib><creatorcontrib>LIU HAIYE</creatorcontrib><creatorcontrib>PENG REN</creatorcontrib><creatorcontrib>ZHANG QIANZI</creatorcontrib><creatorcontrib>LU JUNPING</creatorcontrib><creatorcontrib>GAO YUNCAI</creatorcontrib><creatorcontrib>WANG ZHENGXU</creatorcontrib><creatorcontrib>DENG SHAOWEN</creatorcontrib><creatorcontrib>ZHU YUNCONG</creatorcontrib><title>Method for identifying color of flue-cured tobacco</title><description>The invention provides a method for identifying the color of primary flue-cured tobacco. 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The method comprises the following steps: 1) taking the back surface of the primary flue-cured tobacco as an identification surface; 2) determining the length and the main vein of the flue-cured tobacco leaves; 3) uniformly selecting three position points on the main pulse from the stem end of the main pulse to the tip end of the main pulse; 4) taking the main pulse as a symmetry axis, selecting six points as measuring points at positions which are 2cm-4cm away from the two sides of the three position points, and measuring the reflection spectrum of the back surface of the primary flue-cured tobacco through a spectrophotometer; (5) respectively carrying out second derivative processing on the reflection spectrums of the measuring points to obtain a second derivative value at 500nm, a second derivative value at 670nm, a second derivative value at 520nm and a second derivative value at 640nm; (6) obtaining the color scale o</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CALCULATING COLORIMETRY COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING IMAGE DATA PROCESSING OR GENERATION, IN GENERAL MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING PHYSICS RADIATION PYROMETRY TESTING |
| title | Method for identifying color of flue-cured tobacco |
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