Colorimetric parameters for bloodstain characterization by smartphone
AbstractThis smartphone colorimetry investigated RGB (red, green and blue), HSV (hue, saturation and value of brightness) and CMYK (cyan, magenta, yellow and key) color parameters for characterizing bloodstains. Blood samples, separately deposited on cotton cloths and tissue papers, were analyzed by...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2023-12-01
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| Series: | Arab Journal of Basic and Applied Sciences |
| Subjects: | |
| Online Access: | https://www.tandfonline.com/doi/10.1080/25765299.2023.2194129 |
| _version_ | 1797849379449602048 |
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| author | Natthinee Dinmeung Yaowarat Sirisathitkul Chitnarong Sirisathitkul |
| author_facet | Natthinee Dinmeung Yaowarat Sirisathitkul Chitnarong Sirisathitkul |
| author_sort | Natthinee Dinmeung |
| collection | DOAJ |
| description | AbstractThis smartphone colorimetry investigated RGB (red, green and blue), HSV (hue, saturation and value of brightness) and CMYK (cyan, magenta, yellow and key) color parameters for characterizing bloodstains. Blood samples, separately deposited on cotton cloths and tissue papers, were analyzed by the ‘Colorimeter X’ application on an iPhone XR after 1, 5, 7, 9 and 11 days. The reductions in RGB and V values recorded by the smartphone application are consistent with darker bloodstain over time. Bloodstain colors are sensitive to the substrate and person-to-person variation, but a similar correlation with time could be established by a linear least squares fitting. With the highest coefficient of determination averaged from four samples, the V value is the most effective parameter for describing bloodstain ageing. For other color spaces, the R and K almost match the V value in measuring the bloodstains. Because these three values may be susceptible to the deviation in the measurement, the B value is suggested as an additional parameter in the bloodstain characterization. This small-scale study demonstrates the potential of colorimetric parameters in an on-site analysis by a cost-effective smartphone. |
| first_indexed | 2024-04-09T18:44:09Z |
| format | Article |
| id | doaj.art-8eb0e3a94be348dfbac654ac5e95fede |
| institution | Directory Open Access Journal |
| issn | 2576-5299 |
| language | English |
| last_indexed | 2024-04-09T18:44:09Z |
| publishDate | 2023-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Arab Journal of Basic and Applied Sciences |
| spelling | doaj.art-8eb0e3a94be348dfbac654ac5e95fede2023-04-10T15:26:00ZengTaylor & Francis GroupArab Journal of Basic and Applied Sciences2576-52992023-12-0130119720710.1080/25765299.2023.2194129Colorimetric parameters for bloodstain characterization by smartphoneNatthinee Dinmeung0Yaowarat Sirisathitkul1Chitnarong Sirisathitkul2Division of Physics, School of Science, Walailak University, Nakhon Si Thammarat, ThailandDivision of Computer Engineering and Electronics, School of Engineering and Technology, Walailak University, Nakhon Si Thammarat, ThailandDivision of Physics, School of Science, Walailak University, Nakhon Si Thammarat, ThailandAbstractThis smartphone colorimetry investigated RGB (red, green and blue), HSV (hue, saturation and value of brightness) and CMYK (cyan, magenta, yellow and key) color parameters for characterizing bloodstains. Blood samples, separately deposited on cotton cloths and tissue papers, were analyzed by the ‘Colorimeter X’ application on an iPhone XR after 1, 5, 7, 9 and 11 days. The reductions in RGB and V values recorded by the smartphone application are consistent with darker bloodstain over time. Bloodstain colors are sensitive to the substrate and person-to-person variation, but a similar correlation with time could be established by a linear least squares fitting. With the highest coefficient of determination averaged from four samples, the V value is the most effective parameter for describing bloodstain ageing. For other color spaces, the R and K almost match the V value in measuring the bloodstains. Because these three values may be susceptible to the deviation in the measurement, the B value is suggested as an additional parameter in the bloodstain characterization. This small-scale study demonstrates the potential of colorimetric parameters in an on-site analysis by a cost-effective smartphone.https://www.tandfonline.com/doi/10.1080/25765299.2023.2194129Bloodstaincolor modeldigital image colorimetryimage analysissmartphone |
| spellingShingle | Natthinee Dinmeung Yaowarat Sirisathitkul Chitnarong Sirisathitkul Colorimetric parameters for bloodstain characterization by smartphone Arab Journal of Basic and Applied Sciences Bloodstain color model digital image colorimetry image analysis smartphone |
| title | Colorimetric parameters for bloodstain characterization by smartphone |
| title_full | Colorimetric parameters for bloodstain characterization by smartphone |
| title_fullStr | Colorimetric parameters for bloodstain characterization by smartphone |
| title_full_unstemmed | Colorimetric parameters for bloodstain characterization by smartphone |
| title_short | Colorimetric parameters for bloodstain characterization by smartphone |
| title_sort | colorimetric parameters for bloodstain characterization by smartphone |
| topic | Bloodstain color model digital image colorimetry image analysis smartphone |
| url | https://www.tandfonline.com/doi/10.1080/25765299.2023.2194129 |
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