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(show all questions)
(show all questions)
- How long after submission do the purple viewpoint markers appear on the coverage map? Close
- Currently (June 2021), updated every Tuesday morning.
But could still take a few days to show due to caching.
- How do I view EXIF details for a photo on Geograph? Close
- Not all submissions have EXIF details attached, some image manipulation software strips the EXIF unless you ask it not too. Some contributors deliberately strip the EXIF as an easy fix to portrait images appearing sideways on the site.
Where it exists you can use a browser add-on to view the EXIF or download the photo (not the smallest version when larger ones are available - the next size up will have it). In Windows right-click on the photo in question and select 'Properties' then 'Details'. On macOS, open the photo in Preview, click on 'Tools' up in the menu bar at the top then select 'Show Inspector' and click on the 'Exif' tab. In Irfanview use the 'Image information' button.
- I've spotted a mistake. What should I do? Close
- [PERSONAL OPINION OF THE AUTHOR] Geograph takes pride in taking care about accuracy of location and information content. We like to think that this sets us apart from many other picture sites on the internet.
Whether it is one of your own pictures or someone else's, if you think something's wrong, please use the 'change image details' or 'suggest update' link under the main picture. This gives you access to a form where you can amend any of the details (subject and camera position, view direction, title, description etc). After making your changes, leave a short explanation in the box at the end of the form.
Changes to your own images will update immediately. The only exception are changes to the subject grid square, which are moderated; this will typically take a day or so.
If you suggest changes to someone else's pictures, they will be alerted and have an opportunity to reply. Ideally, you should work with the original contributor to come to a consensus. Moderators will try to assist with that. Generally, accuracy is taken very seriously, but if additional information is presented, it is the photo contributor's prerogative to decide whether to accept it.
When making a suggestion, please bear in mind that you are communicating with the original author, not primarily with Geograph. Explain your changes in a friendly and civil manner, and supply sources to verify your point. Avoid making many suggestions to the same contributor at the same time.
Suggestions which are mainly concerned with geograph/supplemental* classification or seek to move positions by small amounts within the stated precision (often 100m) are regarded as a waste of time by many and can cause aggravation out of proportion with their usefulness.
* (From 11 May 2016 the Supplemental Classification is replaced by Image Type Tags:
see http://www.geograph.org.uk/article/Image-Type-Tags ).
- Are images on Geograph automatically uploaded to Google Earth as well? Close
- No, Google Earth sources its images from Google's own Streetview camera vehicles and from its public photography site, Panoramio. However, there is a green 'kml' button in the footer of every image page which allows you to see the particular image in Google Earth. Similarly, you can download the results of every search as a kml file for display in Google Earth (link near the bottom of the search results page). For an overview of all Geograph kml feeds, see http://www.geograph.org.uk/kml.php .
On the other hand, Geograph images are automatically transferred to Wikimedia, and many are already being used in Wikipedia pages in many languages.
- Do I need to resize my photos before upload? Are there size limits? Close
- You can upload images of any dimensions, portrait or landscape, but the file size needs to be under 8 megabytes. We do resize them so their longest dimension is 640 pixels on the main photo page. Optionally, you can also release larger versions of various sizes for downloading and re-use.
We only accept JPEG encoded images. If you have any image in another format it will need to be converted.
Ideally images shouldn't have a longest dimension of fewer than 480 pixels. While we might accept such images if they hold particular interest, we would really prefer a larger image.
We do record the EXIF headers from your original image, so it is advantageous to upload your original camera image or use image editing software that maintains the EXIF data if you want this information to be kept (but we don't currently make use of the data).
- How can I improve a photo? Close
- [the beginnings of an answer]
Put simply, photographs are made of light. In good light, today's digital cameras make it difficult to take a technically poor photo. Sometimes, though, photos unavoidably come out dark or grey because the subject was in shadow, or it was getting late; worst of all, a cloud appeared overhead and followed you round while the distant landscape was bathed in sunshine. There are ways of making these photos reveal their subjects better.
This isn't a highly technical answer. It refers to features of commonly-used image editing or image enhancement software.
[to be continued]
- How can I take better photos? Close
- Geograph is primarily for documentary photographs, not works of art. If your photos clearly show the subject, are well-lit, straightened-up, in focus and if possible visually appealing, you're doing fine. In the Collections area of the site there are many examples: see any of the 'Stellar examples' in Themed topics and illustrations of Geographical context at http://www.geograph.org.uk/tags/primary.php
Generally speaking, sunshine gives best results, but time of day and time of year impart their own qualities to a photo. In bright summer light in the middle of the day, subjects are unavoidably top-lit, often reflective, while shadows are short, intense and below the subject. In the early morning and from late afternoon the sun is lower in the sky, subjects may be side-lit, the light is less harsh and shadows may be attractively long, revealing the form of objects they lie across. Similar conditions prevail in the middle of the day in the winter months. Photographing into the light is not recommended. 'Contre-jour' effects are expressive but may not convey much geographical information. Sometimes, however, you should ignore advice such as this and just respond to the subject and the conditions. For very bright surroundings such as snow, beaches and expanses of rock or concrete, consult your user guide.
Subjects and scenes in shadow may sometimes have to be photographed "ready or not". The sun goes in or clouds merge. Pointing the camera more towards the ground will make auto-exposure adjust for a darker subject. If you prefer more control you can change the camera settings: look in your user guide for topics such as 'ISO speed', 'Metering mode' and 'Exposure compensation'. There may be less control with a camera phone: photos taken in poor light are likely to be dark or dull. To salvage something from a disappointing photo, see the answer to the question 'How can I improve a photo?' On the other hand dull days provide opportunities for photographing other subjects, such as details. Exploit the 'flat' light with zoom shots of distant subjects.
Photographs taken at night are often classified as supplementals. That is fine; they can reveal geographic and cultural realities not evident during the day. There may be multiple light sources. Again, consult your camera's user guide. Experiment — and stay safe.
edited by Robin Stott
- How do different image editing applications compare? Close
- Actually I like Photoshop. It IS expensive, but you can purchase cheaper versions of it which are perfectly capable. It does take a little time to learn, but if you can master the keyboard shortcuts it helps a lot. It really can do everything - from HDR to 3d painting.
There are loads of Image editing applications, including the free one GIMP. Its personal preference. GIMP is very capable, but I'm not personally keen on the interface, even if it is a bit like Photoshop. It also runs on Linux.
In windows, its useful to have the application set up so that a right click on the image will launch the application, or open the image in it.
- Is there a way to enter latitude and longitude directly when submitting? Close
- Most GPS receivers allow you to change the datum and display format to OSGB36 and British National Grid, the convention used by the Ordnance Survey of Great Britain. If you're using a GPS built into a mobile phone, this may not be possible, and your coordinates will always be in WGS84 lat/lon format. If you also use your GPS phone to take your geographs, it should store the positions in the GeoExif header, which Geograph should interpret correctly as camera position (via the Geotagged Image option).
Otherwise, you can use the map part of the submission routine ('locate/find on map') and enter your lat/lon coordinates in the format the 'Search' function, in decimal degrees like 56.45657,-4.54675 . This will look up the grid reference for the location and insert it as _subject_ position into the submission dialogue. You may have to adjust this unless the subject was right in front of you.
Alternatively, there is a conversion tool here on Geograph Tools http://www.nearby.org.uk/coord.cgi?f=conv from which you can copy and paste. Or one built into geograph at https://www.geograph.org.uk/latlong.php
(Question asked by Roga and answered by barryhunter, oasthouse and DHL on the forum http://www.geograph.org.uk/discuss/index.php?&action=vthread&forum=18&topic=13483&dontcount=1&page=0#1
Later updated, as conversion tools have changed over time))
- I have just had my first ever Cross Grid. Why none before? Close
- The image type tags were introduced in May 2016, previously it would have been classified as Supplemental. Perhaps you have not previously submitted an image where the subject is not in the same grid square as the camera position, or maybe you just have not noticed the tag.
- Are all photo's taken outside of a grid square "cross-grids"? Close
- (From 11 May 2016 the Supplemental Classification is replaced by Image Type Tags:
see http://www.geograph.org.uk/article/Image-Type-Tags-update ).
The short answer is "Yes": Whilst in the past there was some degree of discretion if the camera position was close to a grid-line, current guidance (2016) is quite strict.
One of the aims of Geograph is to encourage people to visit all possible land squares. If there was not a general rule requiring the camera to be in the same grid square as the subject a photographer could go to the top of a mountain or tall building and use a telephoto lens to "bag" a number of grid-squares without having to visit them.
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