Using the eye dropper tool select the color of your choice. double click on the swatch to open the color picker window.
Or by going to Edit>Fill>Color this will also open the color picker
In the color picker window go to "color libraries" under that drop down menu select the spot color book of your choice, typically pantone is the standard. This will match your color to the closest possible spot color.
If you want to convert a DIC color to a Pantone color, you must calcuate the CMYK value inside a graphics program such as Photoshop. Once you have the CMYK value you can convert the color.
In Photoshop you can not convert RGB to Dulux.
What is colour channel in photoshop?
Levels in Photoshop are color and brightness correction.
RGB is color mode suitable for on screen viewing, rgb layer means that layer is in rgb color space. IN Photoshop you can see (or change) in which color mode you are working from Image > Mode
Photoshop Color Suit
To change color mode go to Image > Mode > choose. To change color profile go to Edit >Color Settings, Edit > Assign Profile or Edit > Convert to Profile.
Curves is adjustment in Photoshop where you can adjust colors and tones in an image.
color layers is simply color layers
spot can be any color.
This is a complicated process. To begin, TPX in Pantone stands for Textile Paper Extended. These colors are meant for printing on fabric. When one has a CMYK image in Photoshop the colors can not just be converted. The only way to incorporate spot color (Pantone) into a rasterized CMYK image is as an extra plate, or spot color channel in Photoshop. One can also create a monotone, duotone or tritone from a CMYK image. To do this the image can not remain in CMYK mode. The process is much easier to do in a vector file. Using the eye dropper or color picker tool in Photoshop one can measure the amount of cyan, magenta, yellow and black in a specific area. Using the swatches palette open the appropriate Pantone library, find the desired color and measure the CMYK content in the same manner. This process will reveal the CMYK equivalent for that specific color.
You can open .gif file in Photoshop, to convert it to another format, first open it in Photoshop then go to Save As and choose another format to save. If you cannot open that file in photoshop then See related link for free online file conversion, convert to png, jpg or tiff and you will open file in Photoshop.