Those look like standard three piece cranks. You need a special drank removal tool. The one made by Park Tools for pulling square taper cranks should work, CCP-22, they are about $15 at your local bike shop (LBS) or online. If you have Octalink or spline drive cranks they have a tool for that too.
The cranks are usually held in place with a 14 or 15 mm bolt or nut on square taper bottom brackets and you can use a regular ratchet and socket to remove these. Once removed, you thread in the crank removal tool (mentioned above) and then turn the handle until the crank comes off (this is very tight and takes a lot of "elbow grease" to turn the tool handle).
To remove your pedals, you can use a 15mm open end/box end wrench to remove them. Keep in mind that pedals thread into the cranks in the same direction on both sides, so in other words one side is reverse threaded (this has always been the non-drive side crank).
Answers & Comments
Those look like standard three piece cranks. You need a special drank removal tool. The one made by Park Tools for pulling square taper cranks should work, CCP-22, they are about $15 at your local bike shop (LBS) or online. If you have Octalink or spline drive cranks they have a tool for that too.
The cranks are usually held in place with a 14 or 15 mm bolt or nut on square taper bottom brackets and you can use a regular ratchet and socket to remove these. Once removed, you thread in the crank removal tool (mentioned above) and then turn the handle until the crank comes off (this is very tight and takes a lot of "elbow grease" to turn the tool handle).
To remove your pedals, you can use a 15mm open end/box end wrench to remove them. Keep in mind that pedals thread into the cranks in the same direction on both sides, so in other words one side is reverse threaded (this has always been the non-drive side crank).