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HISTOGRAM STRETCH [5 records]
Record 1 - internal organization data 2013-10-17
Record 1, English
Record 1, Subject field(s)
- Remote Sensing
Record 1, Main entry term, English
- histogram-equalized stretch
1, record 1, English, histogram%2Dequalized%20stretch
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 OBS
[The histogram-equalized] stretch assigns more display values(range) to thefrequently occurring portions of the histogram. In this way, the detail in theseareas will be better enhanced relative to those areas of the original histogram wherevalues occur less frequently. 1, record 1, English, - histogram%2Dequalized%20stretch
Record 1, French
Record 1, Domaine(s)
- Télédétection
Record 1, Main entry term, French
- étirement pondéré de l'histogramme
1, record 1, French, %C3%A9tirement%20pond%C3%A9r%C3%A9%20de%20l%27histogramme
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 OBS
[L'étirement pondéré de l'histogramme] assigne un intervalle de valeurs plus grand dans les portions de l'histogramme pour lesquelles les valeurs d'intensité ont une fréquence plus élevée. De cette façon, les détails de ces régions seront mieux rehaussés que les détails des régions pour lesquelles la fréquence des valeurs d'intensité de l'histogramme est plus faible. 1, record 1, French, - %C3%A9tirement%20pond%C3%A9r%C3%A9%20de%20l%27histogramme
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2013-06-26
Record 2, English
Record 2, Subject field(s)
- Cartography
- Remote Sensing
Record 2, Main entry term, English
- linear contrast stretching
1, record 2, English, linear%20contrast%20stretching
correct, officially approved
Record 2, Abbreviations, English
Record 2, Synonyms, English
- linear contrast stretch 2, record 2, English, linear%20contrast%20stretch
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
Linear Contrast Stretch... involves identifying lower and upper bounds from the histogram(usually the minimum and maximum brightness values in the image) and applying a transformation to stretch this range to fill the full range. 3, record 2, English, - linear%20contrast%20stretching
Record number: 2, Textual support number: 1 OBS
linear contrast stretching: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG). 4, record 2, English, - linear%20contrast%20stretching
Record 2, French
Record 2, Domaine(s)
- Cartographie
- Télédétection
Record 2, Main entry term, French
- étirement linéaire de contraste
1, record 2, French, %C3%A9tirement%20lin%C3%A9aire%20de%20contraste
correct, masculine noun, officially approved
Record 2, Abbreviations, French
Record 2, Synonyms, French
- étalement linéaire de contraste 2, record 2, French, %C3%A9talement%20lin%C3%A9aire%20de%20contraste
correct, masculine noun, officially approved
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Le rehaussement linéaire de contraste réalise un étirement de contraste qui améliore de façon linéaire les valeurs numériques originales des données en une nouvelle diffusion. En étirant les valeurs originales de l'image entrée, l'intervalle total de niveau de gris peut être utilisé. 3, record 2, French, - %C3%A9tirement%20lin%C3%A9aire%20de%20contraste
Record number: 2, Textual support number: 1 OBS
étirement linéaire de contraste; étalement linéaire de contraste : termes uniformisés par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR). 4, record 2, French, - %C3%A9tirement%20lin%C3%A9aire%20de%20contraste
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2007-01-18
Record 3, English
Record 3, Subject field(s)
- Remote Sensing
Record 3, Main entry term, English
- histogram stretching
1, record 3, English, histogram%20stretching
correct, officially approved
Record 3, Abbreviations, English
Record 3, Synonyms, English
- histogram stretch 2, record 3, English, histogram%20stretch
correct
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
Histogram stretching is a method of changing the contrast of an image by adjusting the number of pixel spectral intensity values in each value bin (from 0 to 255) of the image’s spectral reflectance intensity histogram. 3, record 3, English, - histogram%20stretching
Record number: 3, Textual support number: 2 CONT
A histogram stretch ensures that maximum contrast is achieved in the imagery. 4, record 3, English, - histogram%20stretching
Record number: 3, Textual support number: 1 OBS
histogram stretching: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG). 5, record 3, English, - histogram%20stretching
Record 3, French
Record 3, Domaine(s)
- Télédétection
Record 3, Main entry term, French
- étalement d'histogramme
1, record 3, French, %C3%A9talement%20d%27histogramme
correct, masculine noun, officially approved
Record 3, Abbreviations, French
Record 3, Synonyms, French
- étirement d'histogramme 2, record 3, French, %C3%A9tirement%20d%27histogramme
correct, masculine noun
- linéarisation d'histogramme 2, record 3, French, lin%C3%A9arisation%20d%27histogramme
correct, feminine noun
- expansion de la dynamique 2, record 3, French, expansion%20de%20la%20dynamique
correct, feminine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 DEF
Traitement [qui] consiste à redistribuer les niveaux de gris (ou les couleurs) de manière à mieux utiliser la palette disponible. 3, record 3, French, - %C3%A9talement%20d%27histogramme
Record number: 3, Textual support number: 1 CONT
L'étirement d'histogramme (aussi appelé "linéarisation d'histogramme" ou "expansion de la dynamique") consiste à répartir les fréquences d'apparition des pixels sur la largeur de l'histogramme. Ainsi, il s'agit d'une opération consistant à modifier l'histogramme de telle manière à répartir au mieux les intensités sur l'échelle des valeurs disponibles. Ceci revient à étendre l'histogramme afin que la valeur d'intensité la plus faible soit à zéro et que la plus haute soit à la valeur maximale. De cette façon, si les valeurs de l'histogramme sont très proches les unes des autres, l'étirement va permettre de fournir une meilleure répartition afin de rendre les pixels clairs encore plus clairs et les pixels foncés proches du noir. 4, record 3, French, - %C3%A9talement%20d%27histogramme
Record number: 3, Textual support number: 2 CONT
L'étalement d'histogramme modifie chaque pixel indépendamment de son voisin, ce qui en fait un traitement réversible, car tous les pixels ayant la même valeur initiale auront de nouveau la même valeur. 3, record 3, French, - %C3%A9talement%20d%27histogramme
Record number: 3, Textual support number: 1 OBS
étalement d'histogramme : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR). 5, record 3, French, - %C3%A9talement%20d%27histogramme
Record number: 3, Textual support number: 1 PHR
Étirement pondéré de l'histogramme. 5, record 3, French, - %C3%A9talement%20d%27histogramme
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2005-10-13
Record 4, English
Record 4, Subject field(s)
- Remote Sensing
Record 4, Main entry term, English
- linear contrast enhancement
1, record 4, English, linear%20contrast%20enhancement
correct, officially approved
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 CONT
Linear contrast enhancement... linearly expands the original digital values of the remotely sensed data into a new distribution. By expanding the original input values of the image, the total range of sensitivity of the display device can be utilized. Linear contrast enhancement also makes subtle variations within the data more obvious. These types of enhancements are best applied to remotely sensed images with Gaussian or near-Gaussian histograms, meaning, all the brightness values fall within a narrow range of the histogram and only one mode is apparent. There are three methods of linear contrast enhancement : Minimum-Maximam Linear Contrast Stretch [;] Percentage Linear Contrast Stretch [and] Piecewise Linear Contrast Stretch. 2, record 4, English, - linear%20contrast%20enhancement
Record number: 4, Textual support number: 1 OBS
There are several types of contrast enhancements which can be subdivided into Linear and Non-Linear procedures. 3, record 4, English, - linear%20contrast%20enhancement
Record number: 4, Textual support number: 2 OBS
linear contrast enhancement: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG). 4, record 4, English, - linear%20contrast%20enhancement
Record 4, French
Record 4, Domaine(s)
- Télédétection
Record 4, Main entry term, French
- rehaussement linéaire de contraste
1, record 4, French, rehaussement%20lin%C3%A9aire%20de%20contraste
correct, masculine noun, officially approved
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 CONT
Le rehaussement linéaire de contraste réalise un étirement de contraste qui améliore de façon linéaire les valeurs numériques originales des données en une nouvelle diffusion. En étirant les valeurs originales de l'image entrée, l'intervalle total de niveau de gris peut être utilisé. 2, record 4, French, - rehaussement%20lin%C3%A9aire%20de%20contraste
Record number: 4, Textual support number: 1 OBS
rehaussement linéaire de contraste : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR). 3, record 4, French, - rehaussement%20lin%C3%A9aire%20de%20contraste
Record 4, Key term(s)
- rehaussement linéaire du contraste
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 2002-03-25
Record 5, English
Record 5, Subject field(s)
- Remote Sensing
Record 5, Main entry term, English
- non-linear stretching
1, record 5, English, non%2Dlinear%20stretching
correct, officially approved
Record 5, Abbreviations, English
Record 5, Synonyms, English
- nonlinear stretching 2, record 5, English, nonlinear%20stretching
correct
- non-linear stretch 3, record 5, English, non%2Dlinear%20stretch
correct
- nonlinear stretch 4, record 5, English, nonlinear%20stretch
correct
Record 5, Textual support, English
Record number: 5, Textual support number: 1 DEF
An image enhancement technique that allows for the variable modification of pixel DNs [diginal numbers] as opposed to linear stretch. 3, record 5, English, - non%2Dlinear%20stretching
Record number: 5, Textual support number: 1 OBS
If the data histogram for an image has more than one mode and/or is not symmetrical, a nonlinear stretch such as histogram equalization or piecewise stretch may be a better contrast enhancement choice... 5, record 5, English, - non%2Dlinear%20stretching
Record number: 5, Textual support number: 2 OBS
non-linear stretching: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG). 6, record 5, English, - non%2Dlinear%20stretching
Record 5, Key term(s)
- non linear stretch
- non linear stretching
Record 5, French
Record 5, Domaine(s)
- Télédétection
Record 5, Main entry term, French
- étirement non linéaire
1, record 5, French, %C3%A9tirement%20non%20lin%C3%A9aire
correct, masculine noun, officially approved
Record 5, Abbreviations, French
Record 5, Synonyms, French
- étalement non linéaire 2, record 5, French, %C3%A9talement%20non%20lin%C3%A9aire
correct, masculine noun
Record 5, Textual support, French
Record number: 5, Textual support number: 1 DEF
Technique de rehaussement radiométrique qui étale les niveaux de gris d'une image de manière non proportionnelle. 2, record 5, French, - %C3%A9tirement%20non%20lin%C3%A9aire
Record number: 5, Textual support number: 1 CONT
La méthode d'étirement non linéaire du contraste a un inconvénient important. Chaque valeur dans l'image d'entrée peut avoir plusieurs contrastes de valeurs dans l'image de sortie. 1, record 5, French, - %C3%A9tirement%20non%20lin%C3%A9aire
Record number: 5, Textual support number: 1 OBS
étirement non linéaire : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR). 3, record 5, French, - %C3%A9tirement%20non%20lin%C3%A9aire
Record 5, Key term(s)
- étalement non-linéaire
- étirement non-linéaire
Record 5, Spanish
Record 5, Textual support, Spanish
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