跳至內容

File:Mercury in true color.jpg

頁面內容不支援其他語言。
這個檔案來自維基共享資源
維基百科,自由的百科全書

原始檔案 (1,040 × 1,040 像素,檔案大小:408 KB,MIME 類型:image/jpeg


摘要

描述
English: This is a cropped bottom right image from the original four image mosaic PIA11364: Mercury's "True" Color is in the Eye of the Beholder.

Original Caption Released with Image:

   Given the WAC’s ability to take images through 11 narrow-band color filters, it is natural to wonder what does Mercury look like in “true” color such as would be seen by the human eye. However, creating such a natural color view is not as simple as it may seem. Shown here are four images of Mercury. The image in the top left is the previously released grayscale monochrome single WAC filter (430-nanometer) image (PIA11245); the remaining three images are three-color composites, produced by placing the same three WAC filter images with peak sensitivities at 480, 560, and 630 nanometers in the blue, green, and red channels, respectively. The differences between the color representations result from how the brightness and contrast of each individual WAC filter image was adjusted before it was combined into a color picture. In the top right view, all of the three filter images were stretched using the same brightness and contrast settings. In the bottom left picture, the brightness and contrast of each of the three filter images were determined independent of the others. In the bottom right, the brightness and contrast settings used in the upper right version were slightly adjusted to make each of the three filter images span a similar range of brightness and contrast values.
   So which color representation is “correct” for Mercury? The answer to that would indeed depend on the eye of the beholder. Every individual sees color differently; the human eye has a range of sensitivities that vary from person to person, resulting in different perceptions of “true” color. In addition, the three MDIS filter bands are narrow, and light at wavelengths between their peaks is not detected, unlike the human eye. In general, in light visible to the human eye, Mercury’s surface shows only very subtle color variations, as seen in the three images here. However, when images from all 11 WAC filters are statistically compared and contrasted, these subtle color variations can be greatly enhanced, resulting in extremely colorful representations of Mercury’s surface, such as seen in a high-resolution image of Thākur crater (PIA11365).
   Date Acquired: October 6, 2008
   Image Mission Elapsed Time (MET): 131775256, 131775260, 131775264, 131775268
   Instrument: Wide Angle Camera (WAC) of the Mercury Dual Imaging System (MDIS)
   Resolution: 5 kilometers/pixel (3 miles/pixel)
   Scale: Mercury’s diameter is 4880 kilometers (3030 miles)
Spacecraft Altitude: 27,000 kilometers (17,000 miles)
日期
來源 https://photojournal.jpl.nasa.gov/catalog/PIA11364
作者 NASA/Johns Hopkins University Applied Physics Laboratory/Arizona State University/Carnegie Institution of Washington

授權條款

Public domain 本作品由NASA創作,屬於公有領域。根據NASA的版權政策:“NASA的創作除非另有聲明否則不受版權保護。”(參見:Template:PD-USGov/zhNASA版權政策JPL圖像使用政策
警告:
註解
InfoField
該圖片含有註解:在維基媒體共享資源上查看註解

說明

添加單行說明來描述出檔案所代表的內容
Mercury in true color. Photographed by Messenger in 2008.

在此檔案描寫的項目

描繪內容

image/jpeg

檔案歷史

點選日期/時間以檢視該時間的檔案版本。

日期/時間縮⁠圖尺寸使用者備⁠註
目前2023年5月15日 (一) 08:16於 2023年5月15日 (一) 08:16 版本的縮圖1,040 × 1,040(408 KB)CactiStaccingCraneReverted to version as of 10:42, 24 July 2022 (UTC)
2023年5月15日 (一) 08:01於 2023年5月15日 (一) 08:01 版本的縮圖1,024 × 1,024(837 KB)CactiStaccingCraneManually merge the original monochrome image with the calibrated color image to eek out more resolution
2022年7月24日 (日) 10:42於 2022年7月24日 (日) 10:42 版本的縮圖1,040 × 1,040(408 KB)JCP-JohnCarloMake this planet image center
2022年7月24日 (日) 10:25於 2022年7月24日 (日) 10:25 版本的縮圖1,040 × 1,040(710 KB)JCP-JohnCarloCanvas image
2019年11月3日 (日) 09:00於 2019年11月3日 (日) 09:00 版本的縮圖960 × 1,040(865 KB)MireckiUser created page with UploadWizard

全域檔案使用狀況

以下其他 wiki 使用了這個檔案:

檢視此檔案的更多全域使用狀況

詮釋資料