原始文件 (1,733 × 1,703像素,文件大小:701 KB,MIME类型:image/jpeg)
摘要
描述 |
English: Yogi Rock on Mars
http://mars.jpl.nasa.gov/MPF/mpf/high-res.html "Yogi" is a meter-size rock about 5 meters northwest of the Mars Pathfinder lander and was the second rock visited by the Sojourner Rover’s alpha proton X-ray spectrometer (APXS) instrument. This mosaic shows super resolution techniques applied to the second APXS target rock, which was poorly illuminated in the rover’s forward camera view taken before the instrument was deployed. Super resolution was applied to help to address questions about the texture of this rock and what it might tell us about its mode of origin. This mosaic of Yogi was produced by combining four "Super Pan" frames taken with the IMP camera. This composite color mosaic consists of 7 frames from the right eye, taken with different color filters that were enlarged by 500% and then co-added using Adobe Photoshop to produce, in effect, a super-resolution panchromatic frame that is sharper than an individual frame would be. This panchromatic frame was then colorized with the red, green, and blue filtered images from the same sequence. The color balance was adjusted to approximate the true color of Mars. Shadows were processed separately from the rest of the rock and combined with the rest of the scene to bring out details in the shadow of Yogi that would be too dark to view at the same time as the sunlit surfaces. This resulted in the unusual color fringing at the edges of the shadow. |
日期 | 2015-02-21 |
来源 | http://mars.jpl.nasa.gov/MPF/ops/Yogi_super_res.jpg |
作者 | NASA/JPL/Dr. Timothy Parker |
许可协议
本作品是完全由美国国家航空航天局(NASA)创作,或由其雇员以个人公务目的创作;根据NASA的版权方针及美国法典第17篇第1章第105条(17 U.S. Code § 105),本作品在美国属于公有领域。
- NASA的标志、徽章、徽标等受到美国联邦法规第14篇第1221部分(14 CFR 1221)的限制。
- NASA网站上的苏联、俄罗斯或其他非美国航天机构的图片,通常不属于公有领域。
- 根据哈勃空间望远镜的数据制作的材料,若未明确声明由STScI提供,则可能受到版权保护。
- SOHO(ESA和NASA)联合项目表示,由旗下的探测器创作的材料受版权保护,且对于商业性非教育目使用材料需要授权。
- 每日一天文图(APOD)网站上展示的图片可能受到版权保护。
- 美国国家太空科学数据中心(NSSDC)网站存储了受版权保护内容;尽管如此,除非另有声明,图库的所有图片都属于公有领域。
- 来自喷气推进实验室(JPL)的文件,应注明来自“NASA/JPL”或“NASA/JPL-Caltech”,参见JPL图像使用政策。
文件历史
点击某个日期/时间查看对应时刻的文件。
日期/时间 | 缩略图 | 大小 | 用户 | 备注 | |
---|---|---|---|---|---|
当前 | 2023年7月25日 (二) 12:19 | 1,733 × 1,703(701 KB) | BXHS-bot 2(留言 | 贡献) | 自其他网站迁移文件 |
您不可以覆盖此文件。
文件用途
以下22个页面使用本文件: