We are migrating from ImageMagick 6 to ImageMagick 7, but using the same command line option used in version 6 is now giving a blank image in version 7. The command used is
convert "C:\Imagemagick\beige.png" -alpha Activate -scale 640x640 "C:\Imagemagick\Out\Zoom.jpg"
The input "beige.png" does not have an alpha channel. But if I input an image with alpha channel, it creates a file with valid results. Also, if I set the option "-alpha Activate" after scale operation it gives a valid result. Do we need to consider any order while setting the alpha for ImageMagick 7 version?