Support Public Lab Today! For the last twelve years, Public Lab has hosted so that people everywhere can make maps from their aerial photos. Unfortunately, current circumstances have led us to scale back and take certain services offline. will go offline August 15, 2022. The MapKnitter platform runs on a combination of volunteer and paid labor by the many people that build, maintain, and operate it via Public Lab. This is an effective combination thanks to the culture of Public Lab's Coding Community. Public Lab's web ecosystem, including,,, and associated projects, takes 20 hours a week from three Code Coordinators and our sysadmin. While cost effective, it is not free. Web hosting and server costs for MapKnitter are approximately $1000 per month. We are doing our best to sustain programming and support for our community, and we need your help. Thank you for being part of our community. We can't wait to be back online with you. Support Public Lab by making a donation today. *Part of the [Grassroots Mapping Curriculum](/wiki/mapping-curriculum) series.* MapKnitter is a free and open source tool for combining aerial images into a map, or composite image. Informally, we call this "stitching a map" and it's useful if you have many images of overlapping or identical areas, and getting either a web map or a printable map from your photos. MapKnitter can make maps from any image source, but it was designed for making maps with aerial photos from balloons and kites. Start using []( or read on for more documentation! ## Exporting Once you're map is complete, you can download it as a single image in JPG and other formats. Read about the new Cloud exporter here: Learn more about [exporting maps in MapKnitter here](/mapknitter-exporting). ## Activities [activities:mapknitter] **** ## Questions [questions:mapknitter] **** ### Advanced * [Decisions with distortions](!) - Learn about the design process of stitching maps when images are highly distorted or include tall buildings. This tutorial is in Photoshop, but the techniques are applicable to MapKnitter as well. * [Infrared multispectral compositing](/wiki/mapknitter-multispectral) (no video, in progress) Learn how to combine an infrared dataset with your map to assess photosynthesis. (Also: learn [how to collect infrared imagery](/tool/near-infrared-camera)) ...

Author Comment Last activity Moderation
rachelgomez161999 "The file size limit for most creative assets (images, audio, HTML, CSS, data files, JavaScript, etc.) is 10 MB. Video files are limited to 100 MB ..." | Read more » 8 months ago
enedinarham "Whenever I need any help I reach to experts Essay Writing Service. " | Read more » over 1 year ago
pataxte "Thanks Jeff! No problem, I figured this out - the basic process of export --> download, now it makes sense! Haven't tried the shift + drag, will..." | Read more » over 3 years ago
warren "Sorry for slow response here! Just checking -- so, exporting generates downloads, which then appear under "download." And, the thing with exportin..." | Read more » over 3 years ago
warren "Hi, if you were logged in when you made the map, it will appear on your profile like this: Is your map ther..." | Read more » over 3 years ago
silentsairam "@pataxte, Mapknitter maps from Profile Search maps from search bar on Mapknitter site " | Read more » over 3 years ago
silentsairam "Hi, hope you had a great time in Ballon or kite mapping before uploading the captured images on Mapknitter. I guess you did the following steps p..." | Read more » over 3 years ago
silentsairam " @stevie @warren @stefannibrasil How to delete the images which I do not want to place in the map? Started using features of Annotate and trying ..." | Read more » almost 4 years ago
se18023 "Thank-you for your reply and clearing that up. That would be a very useful feature to have indeed! Unfortunately it doesn't recognise the tags on m..." | Read more » almost 4 years ago
rexagod "Hi @se18023! @warren and I are in the final stages of incorporating an "EXIF" module (better UI, as mentioned above) that will enable you to do jus..." | Read more » almost 4 years ago
ROCKETMAN "... " | Read more » almost 4 years ago
ROCKETMAN " Yes you can...but only if your working in Civil 3d or Autocad. You need to download the lisp from autodesk first. Import image to 0,0 then type th..." | Read more » almost 4 years ago
warren "Yes, you should be able to -- see the sidebar where the images are listed and it should show a button if it can detect EXIF GPS tags! This one does..." | Read more » almost 4 years ago
warren " @rexagod @sashadev-sky this is perhaps something you could answer? Thank you! " | Read more » almost 4 years ago
Ag8n "Still photos 4032 x 3024. There is a cheaper version as well, the u-808. Less expensive and less resolution. Also weighs a little less. It cost..." | Read more » over 4 years ago
Ag8n "Video quality is listed as 1920 by 1080 at 30 fps. " | Read more » over 4 years ago
warren "oh wow, that'd be 19 grams, vs. ~68 for the #mobius camera! do you know what the video quality is? Great find! On Thu, Aug 9, 2018 at 2:15 PM \&l..." | Read more » over 4 years ago
Ag8n "That's hd camera / recorder. The link is : " | Read more » over 4 years ago
Zemans "That is a great tip about downloading with the one button. Thank you! " | Read more » almost 5 years ago
warren "I was able to export like that and get a JPG: test-boys.jpg Hope that helps! " | Read more » almost 5 years ago
warren "And less distorted images can sometimes work better for the full export (on the export tab): " | Read more » almost 5 years ago
warren "Hi, if it's only one image, you can use this download button -- the white one to the far right: " | Read more » almost 5 years ago
Zemans "Hi. I am not sure how to respond to bronwen (technically). Yes, we are attempting to use Mapknitter and want to print. Any clue for us? It was only..." | Read more » almost 5 years ago
Zemans "Hi. Thanks much. For a HS science project in Bolivia, we are trying to export a map for printing so we can put it on a poster board. Any help would..." | Read more » almost 5 years ago