New answers tagged jpg
If you just want to remove some of the blue and decrease the overall saturation... choose Image > adjustments > Hue/Saturation and move the Saturation slider to the left. The father left you move it, the more grey the image will get.
You can do this easily in Photoshop: From the top toolbar select Images > Adjustments > Black & White From here you can play around with the presets to get the effect you want.
When exporting, in the first pop-up, under the format, check the option "use artboards"! Hope it helped
Lossless cropping of a JPEG image is possible using the "jpegtran" application that comes with libjpeg; see https://en.wikipedia.org/wiki/Libjpeg. With other image-editing software you can minimize the loss by ensuring that the cropped area has dimensions that are multiples of 8 and is located with offsets being some multiple of 8 from the upper lefthand ...
If you are using Photoshop® then I don't believe that the image compresses when it crops. The compression happens when you resave the document as a JPG. It is always best to start with the highest lossless uncompressed image format you can such as .NEF, .BMP... others (?) As the saying goes, poop in poop out.
Top 50 recent answers are included