CMYK Color Space Research Articles

A Novel Algorithm for Color Space Conversion Model from CMYK to LAB

Color space conversion has become a very important role in the image acquisition, display and the transmission of the color information in the replication. Printers and Image setter express color by CMYK space. But if color is edited and corrected in the CMYK space, it will cause a greater loss of color, and the Computing of computer will also be slowed down. So it often needs to be converted to a LAB uniform color space. Among the previous conversion methods, there is a widespread problem that is dark color tones is a little larger. In view of the problem above, we put forward a non-uniform segmentation method: with Prism geometry linear interpolation method and Pyramid linear geometry interpolation method, doing color modeling for color inkjet printer, realizing the conversion of CMYK and LAB (positive) color space; Meanwhile, we explore techn ical difficulties and the realization process of this method and give a comparison with these two testing results . Through the analysis of the results of the modeling, it can be seen that: The feature of these tow color space conversion method s we proposed in this paper is small in chromatic aberration, effective and simple. This method can also be applied to other color space conversion.

컬러정보와 오류역전파 알고리즘을 이용한 교통표지판 인식

본 논문에서는 컬러정보를 이용하여 교통표지판 영역을 추출하고, 추출된 이미지의 인식을 위해 오류 역전파 학습알고리즘을 적용한 교통표지판 인식시스템을 제안한다. 제안된 방법은 교통표지판의 컬러를 분석하여 영상에서 교통표지판의 후보영역을 추출한다. 후보영역을 추출하는 방법은 RGB 컬러 공간으로부터 YUV, YIQ, CMYK 컬러 공간이 가지는 특성을 이용한다. 형태처리는 교통표지판의 기하학적 특성을 이용하여 영역을 분할하고, 교통표지판 인식은 학습이 가능한 오류역전파 학습알고리즘을 이용하여 인식한다. 실험결과 제안된 시스템은 다양한 크기의 입력영상과 조명의 차이에 영향을 받지 않고 후보영역 추출과 인식에 우수한 성능이 입증되었다. In this thesis, the color information is used to extract the traffic sign territory, and for recognizing the extracted image, it proposes the traffic sign recognition system that applies the error back propagation algorithm. The proposed method analyzes the color of traffic sign to extract and recognize the possible territory of traffic sign. The method of extracting the possible territory is to use the characteristics of YUV, YIQ, and CMYK color space from the RGB color space. Morphology uses the geometric characteristics of traffic sign to make the image segmentation. The recognition of traffic signs can be recognized by using the error back propagation algorithm. As a result of the experiment, the proposed system has proven its outstanding capability in extraction and recognition of candidate territory without the influence of differences in lighting and input image in various sizes.

Keeping up appearances — ultrasound imaging in a digital age

Keeping up appearances — ultrasound imaging in a digital age

Processing color figures: that was then, this is now

EditorialProcessing color figures: that was then, this is nowEric J. Pesanelli, Eric J. PesanelliAPS Art Department E-mail: , Editorial Art ManagerPublished Online:01 Sep 2005https://doi.org/10.1152/advan.00025.2005MoreSectionsPDF (97 KB)Download PDF ToolsExport citationAdd to favoritesGet permissionsTrack citations ShareShare onFacebookTwitterLinkedInEmailWeChat Where Do We Go From Here?The last several years have seen drastic changes, as well as dramatic advances, in the world of scientific publishing. Technology and demand from users have methodically moved the journal publication program of the American Physiological Society (APS) toward a “digital pathway” from on-line submission and peer review to publication.As the APS Publications Department continues to implement more steps in this digital pathway, changes and improvements will continue to emerge. The latest step in this pathway is the APS movement to an RGB (red, green, blue) workflow for the processing of color figures.Out with the OldWith the continuing shift from traditional print journals to online journals, APS will no longer require color images be submitted in CMYK (cyan, yellow, magenta, black) format. Under the previous CMYK workflow, we required authors to convert their RGB images to CMYK for print publication, only to have these images converted back to RGB for online proofing and publication. These conversions, back and forth, resulted in a considerable loss in image color quality and intensity. Vibrant blues, greens, and reds were most affected, because these are not fully represented in the CMYK color space (Fig. 1).Fig. 1.Standard CMYK workflow. Author's original RGB color image is converted to the CMYK color space for printing on large-format printing press, potentially altering the image's color quality. The CMYK version is then converted back to the RGB color space for electronic proofing and online publication, which may further alter the quality of the image.Download figureDownload PowerPointIn With the NewOur digital pathway and on-line publication processes not only make it possible to implement an RGB workflow, they demand it. Online journal publication allows for the use of original RGB color images as captured by digital cameras and scanners and as seen in authors' laboratories and presentations. RGB images will be preserved throughout the online publication process and displayed as the author intended. The RGB workflow allows for the preservation of fluorescent blues, greens, and reds (Fig. 2).Fig. 2.New RGB workflow. Author's original RGB color image remains in the RGB color space through the electronic proofing and on-line publication processes, thus retaining the author's intentions and the image's integrity. The RGB image is only converted to the CMYK color space for printing.Download figureDownload PowerPointWhat About Print?The printed journals must still follow the CMYK workflow. This will require that the last step in the process will be a conversion to CMYK for printing. This conversion will result in the same color shift in the printed journal from the original digital file that was experienced under the old workflow. The print quality should not suffer with this workflow change, and in many cases it will look much better, because the conversion will be done by the printer with much more sophisticated software than was being used by APS Art Editors.How to SubmitStarting in July 2005, authors should submit all color images in RGB color space. The preferred formats are still EPS and TIFF. All images should be created at print quality and size. The minimum resolution for a raster image (TIFF format) is 300 pixels per inch (118 pixels per cm). For more information on the submission of accepted figures, please visit the Instructions for Preparing Your Manuscript page at http://www.the-aps.org/publications/i4a/prep_manuscript.htm.This article has no references to display. Download PDF Back to Top Next FiguresReferencesRelatedInformation More from this issue > Volume 29Issue 3September 2005Pages 137-137 Copyright & Permissions© 2005 American Physiological Societyhttps://doi.org/10.1152/advan.00025.2005History Published online 1 September 2005 Published in print 1 September 2005 Metrics

Processing Color Figures: That Was Then, This Is Now

EDITORIALProcessing Color Figures: That Was Then, This Is NowEric J. Pesanelli, Eric J. Pesanelli, Editorial Art ManagerPublished Online:01 Jul 2005https://doi.org/10.1152/jn.00384.2005MoreSectionsPDF (97 KB)Download PDF ToolsExport citationAdd to favoritesGet permissionsTrack citations ShareShare onFacebookTwitterLinkedInWeChat Where do we go from here?The last several years have seen drastic changes, as well as dramatic advances, in the world of scientific publishing. Technology and demand from users have methodically moved the journal publication program of the American Physiological Society (APS) toward a “digital pathway,” from online submission and peer review to publication.As the APS Publications Department continues to implement more steps in this digital pathway, changes and improvements will continue to emerge. The latest step in this pathway is the APS movement to an RGB (red, green, blue) workflow for the processing of color figures.Out with the oldWith the continuing shift from traditional print journals to online journals, APS will no longer require color images be submitted in CMYK (cyan, yellow, magenta, black) format. Under the previous CMYK workflow, we required authors to convert their RGB images to CMYK for print publication, only to have these images converted back to RGB for online proofing and publication. These conversions, back and forth, resulted in a considerable loss in image color quality and intensity. Vibrant blues, greens, and reds were most affected, because these are not fully represented in the CMYK color space (Fig. 1).FIG. 1.Standard CMYK workflow. Author’s original RGB color image is converted to the CMYK color space for printing on large-format printing press, potentially altering the image’s color quality. The CMYK version is then converted back to the RGB color space for electronic proofing and online publication, which may further alter the quality of the image.Download figureDownload PowerPointIn with the newOur digital pathway and online publication processes not only make it possible to implement an RGB workflow, they demand it. Online journal publication allows for the use of original RGB color images as captured by digital cameras and scanners and as seen in authors’ laboratories and presentations. RGB images will be preserved throughout the online publication process and displayed as the author intended. The RGB workflow allows for the preservation of fluorescent blues, greens, and reds (Fig. 2).FIG. 2.New RGB workflow. Author’s original RGB color image remains in the RGB color space through the electronic proofing and online publication processes, thus retaining the author’s intentions and the image’s integrity. The RGB image is only converted to the CMYK color space for printing.Download figureDownload PowerPointWhat about print?The printed journals must still follow the CMYK workflow. This will require that the last step in the process will be a conversion to CMYK for printing. This conversion will result in the same color shift in the printed journal from the original digital file that was experienced under the old workflow. The print quality should not suffer with this workflow change, and in many cases it will look much better, because the conversion will be done by the printer with much more sophisticated software than was being used by APS Art Editors.How to submitStarting in July 2005, authors should submit all color images in RGB color space. The preferred formats are still EPS and TIFF. All images should be created at print quality and size. The minimum resolution for a raster image (TIFF format) is 300 pixels per inch (118 pixels per cm). For more information on the submission of accepted figures, please visit the Instructions for Preparing Your Manuscript page at http://www.the-aps.org/publications/i4a/prep_manuscript.htm.This article has no references to display. Download PDF Back to Top Next FiguresReferencesRelatedInformation Collections More from this issue > Volume 94Issue 1July 2005Pages 1-1 Copyright & PermissionsCopyright © 2005 by the American Physiological Societyhttps://doi.org/10.1152/jn.00384.2005History Published online 1 July 2005 Published in print 1 July 2005 Metrics

Processing color figures: that was then, this is now

EDITORIALProcessing color figures: that was then, this is nowEric J. Pesanelli, Eric J. Pesanelli, Editorial Art ManagerPublished Online:01 Jul 2005https://doi.org/10.1152/ajprenal.00155.2005MoreSectionsPDF (205 KB)Download PDF ToolsExport citationAdd to favoritesGet permissionsTrack citations ShareShare onFacebookTwitterLinkedInEmailWeChat Where Do We Go From Here?The last several years have seen drastic changes, as well as dramatic advances, in the world of scientific publishing. Technology and demand from users have methodically moved the journal publication program of the American Physiological Society (APS) toward a “digital pathway,” from online submission and peer review to publication.As the APS Publications Department continues to implement more steps in this digital pathway, changes and improvements will continue to emerge. The latest step in this pathway is the APS movement to an RGB (red, green, blue) workflow for the processing of color figures.Out with the OldWith the continuing shift from traditional print journals to online journals, APS will no longer require color images be submitted in CMYK (cyan, yellow, magenta, black) format. Under the previous CMYK workflow, we required authors to convert their RGB images to CMYK for print publication, only to have these images converted back to RGB for online proofing and publication. These conversions, back and forth, resulted in a considerable loss in image color quality and intensity. Vibrant blues, greens, and reds were most affected, because these are not fully represented in the CMYK color space (Fig. 1).Fig. 1.Standard CMYK workflow. Author's original RGB color image is converted to the CMYK color space for printing on large-format printing press, potentially altering the image's color quality. The CMYK version is then converted back to the RGB color space for electronic proofing and online publication, which may further alter the quality of the image.Download figureDownload PowerPointIn with the NewOur digital pathway and online publication processes not only make it possible to implement an RGB workflow, they demand it. Online journal publication allows for the use of original RGB color images as captured by digital cameras and scanners and as seen in authors' laboratories and presentations. RGB images will be preserved throughout the online publication process and displayed as the author intended. The RGB workflow allows for the preservation of fluorescent blues, greens, and reds (Fig. 2).Fig. 2.New RGB workflow. Author's original RGB color image remains in the RGB color space through the electronic proofing and online publication processes, thus retaining the author's intentions and the image's integrity. The RGB image is only converted to the CMYK color space for printing.Download figureDownload PowerPointWhat about Print?The printed journals must still follow the CMYK workflow. This will require that the last step in the process will be a conversion to CMYK for printing. This conversion will result in the same color shift in the printed journal from the original digital file that was experienced under the old workflow. The print quality should not suffer with this workflow change, and in many cases it will look much better, because the conversion will be done by the printer with much more sophisticated software than was being used by APS Art Editors.How to SubmitStarting in July 2005, authors should submit all color images in RGB color space. The preferred formats are still EPS and TIFF. All images should be created at print quality and size. The minimum resolution for a raster image (TIFF format) is 300 pixels per inch (118 pixels per cm). For more information on the submission of accepted figures, please visit the Instructions for Preparing Your Manuscript page at http://www.the-aps.org/publications/i4a/prep_manuscript.htm.This article has no references to display. Download PDF Back to Top Next FiguresReferencesRelatedInformation More from this issue > Volume 289Issue 1July 2005Pages F1-F1 Copyright & PermissionsCopyright © 2005 the American Physiological Societyhttps://doi.org/10.1152/ajprenal.00155.2005PubMed15961881History Published online 1 July 2005 Published in print 1 July 2005 Metrics

Processing color figures: that was then, this is now

EDITORIALSProcessing color figures: that was then, this is nowEric J. Pesanelli, Eric J. Pesanelli, Editorial Art Manager Published Online:01 Jul 2005https://doi.org/10.1152/japplphysiol.00426.2005MoreSectionsPDF (97 KB)Download PDF ToolsExport citationAdd to favoritesGet permissionsTrack citations ShareShare onFacebookTwitterLinkedInEmailWeChat Where Do We Go From Here?The last several years have seen drastic changes, as well as dramatic advances, in the world of scientific publishing. Technology and demand from users have methodically moved the journal publication program of the American Physiological Society (APS) toward a “digital pathway,” from online submission and peer review to publication.As the APS Publications Department continues to implement more steps in this digital pathway, changes and improvements will continue to emerge. The latest step in this pathway is the APS movement to an RGB (red, green, blue) workflow for the processing of color figures.Out with the OldWith the continuing shift from traditional print journals to online journals, APS will no longer require color images be submitted in CMYK (cyan, yellow, magenta, black) format. Under the previous CMYK workflow, we required authors to convert their RGB images to CMYK for print publication, only to have these images converted back to RGB for online proofing and publication. These conversions, back and forth, resulted in a considerable loss in image color quality and intensity. Vibrant blues, greens, and reds were most affected, because these are not fully represented in the CMYK color space (Fig. 1).Fig. 1.Standard CMYK workflow. Author's original RGB color image is converted to the CMYK color space for printing on large-format printing press, potentially altering the image's color quality. The CMYK version is then converted back to the RGB color space for electronic proofing and online publication, which may further alter the quality of the image.Download figureDownload PowerPointIn with the NewOur digital pathway and online publication processes not only make it possible to implement an RGB workflow, they demand it. Online journal publication allows for the use of original RGB color images as captured by digital cameras and scanners and as seen in authors' laboratories and presentations. RGB images will be preserved throughout the online publication process and displayed as the author intended. The RGB workflow allows for the preservation of fluorescent blues, greens, and reds (Fig. 2).Fig. 2.New RGB workflow. Author's original RGB color image remains in the RGB color space through the electronic proofing and online publication processes, thus retaining the author's intentions and the image's integrity. The RGB image is only converted to the CMYK color space for printing.Download figureDownload PowerPointWhat about Print?The printed journals must still follow the CMYK workflow. This will require that the last step in the process will be a conversion to CMYK for printing. This conversion will result in the same color shift in the printed journal from the original digital file that was experienced under the old workflow. The print quality should not suffer with this workflow change, and in many cases it will look much better, because the conversion will be done by the printer with much more sophisticated software than was being used by APS Art Editors.How to SubmitStarting in July 2005, authors should submit all color images in RGB color space. The preferred formats are still EPS and TIFF. All images should be created at print quality and size. The minimum resolution for a raster image (TIFF format) is 300 pixels per inch (118 pixels per cm). For more information on the submission of accepted figures, please visit the Instructions for Preparing Your Manuscript page at http://www.the-aps.org/publications/i4a/prep_manuscript.htm.This article has no references to display. Download PDF Previous Back to Top Next FiguresReferencesRelatedInformation More from this issue > Volume 99Issue 1July 2005Pages 2-2 Copyright & PermissionsCopyright © 2005 the American Physiological Societyhttps://doi.org/10.1152/japplphysiol.00426.2005History Published online 1 July 2005 Published in print 1 July 2005 Metrics

Processing color figures: that was then, this is now

EDITORIALProcessing color figures: that was then, this is nowEric J. Pesanelli, Eric J. Pesanelli, Editorial Art ManagerPublished Online:01 Jul 2005https://doi.org/10.1152/ajpcell.00053.2005MoreSectionsPDF (205 KB)Download PDF ToolsExport citationAdd to favoritesGet permissionsTrack citations ShareShare onFacebookTwitterLinkedInEmailWeChat Where Do We Go From Here?The last several years have seen drastic changes, as well as dramatic advances, in the world of scientific publishing. Technology and demand from users have methodically moved the journal publication program of the American Physiological Society (APS) toward a “digital pathway,” from online submission and peer review to publication.As the APS Publications Department continues to implement more steps in this digital pathway, changes and improvements will continue to emerge. The latest step in this pathway is the APS movement to an RGB (red, green, blue) workflow for the processing of color figures.Out with the OldWith the continuing shift from traditional print journals to online journals, APS will no longer require color images be submitted in CMYK (cyan, yellow, magenta, black) format. Under the previous CMYK workflow, we required authors to convert their RGB images to CMYK for print publication, only to have these images converted back to RGB for online proofing and publication. These conversions, back and forth, resulted in a considerable loss in image color quality and intensity. Vibrant blues, greens, and reds were most affected, because these are not fully represented in the CMYK color space (Fig. 1).Fig. 1.Standard CMYK workflow. Author's original RGB color image is converted to the CMYK color space for printing on large-format printing press, potentially altering the image's color quality. The CMYK version is then converted back to the RGB color space for electronic proofing and online publication, which may further alter the quality of the image.Download figureDownload PowerPointIn with the NewOur digital pathway and online publication processes not only make it possible to implement an RGB workflow, they demand it. Online journal publication allows for the use of original RGB color images as captured by digital cameras and scanners and as seen in authors' laboratories and presentations. RGB images will be preserved throughout the online publication process and displayed as the author intended. The RGB workflow allows for the preservation of fluorescent blues, greens, and reds (Fig. 2).Fig. 2.New RGB workflow. Author's original RGB color image remains in the RGB color space through the electronic proofing and online publication processes, thus retaining the author's intentions and the image's integrity. The RGB image is only converted to the CMYK color space for printing.Download figureDownload PowerPointWhat about Print?The printed journals must still follow the CMYK workflow. This will require that the last step in the process will be a conversion to CMYK for printing. This conversion will result in the same color shift in the printed journal from the original digital file that was experienced under the old workflow. The print quality should not suffer with this workflow change, and in many cases it will look much better, because the conversion will be done by the printer with much more sophisticated software than was being used by APS Art Editors.How to SubmitStarting in July 2005, authors should submit all color images in RGB color space. The preferred formats are still EPS and TIFF. All images should be created at print quality and size. The minimum resolution for a raster image (TIFF format) is 300 pixels per inch (118 pixels per cm). For more information on the submission of accepted figures, please visit the Instructions for Preparing Your Manuscript page at http://www.the-aps.org/publications/i4a/prep_manuscript.htm.This article has no references to display. Download PDF Back to Top Next FiguresReferencesRelatedInformation More from this issue > Volume 289Issue 1July 2005Pages C1-C1 Copyright & PermissionsCopyright © 2005 the American Physiological Societyhttps://doi.org/10.1152/ajpcell.00053.2005PubMed15961881History Published online 1 July 2005 Published in print 1 July 2005 Metrics

Color Figures in BJ: RGB versus CMYK

Biophysical Journal has always striven to produce the best possible journal, and we have used the latest technology available to help us achieve that goal. In recent years, we have made changes that improved our service to authors and readers by implementing an online submission system. This has offered the convenience of uploading and previewing submission materials, and reduced our time from submission to print considerably. More recently, we have begun placing accepted papers online in our BioFAST module, so that papers may be accessed before they are published in print.