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Javi Espada Fotografía Nitidez: Procesar Paso Alto con Photoshop

Nitidez: Procesar Paso Alto con Photoshop

Mejorar la nitidez, tratando el enfoque con PhotoShop.

Una vez que terminamos de trabajar todas las capas, tenemos que acoplarlas, para poder guardar la imagen con formato jpg. Aunque se puede hacer al Acoplar las Capas y trabajar en formato TIFF, o incluso, sin acoplar las Capas, como una última Capa en formato PSD.

Nitidez: Procesar Paso Alto con Photoshop

En el menú de [Capa], seleccionamos [Acoplar imagen].

Nitidez: Procesar Paso Alto con Photoshop

Pues bien, antes de guardarla, convertimos la capa que nos queda en Objeto Inteligente (dándole al botón derecho sobre la capa y escogiendo esa opción).

Nitidez: Procesar Paso Alto con Photoshop

Aplicar el filtro Paso-Alto.

Ahora vamos al menú  [Filtros]-> [Otros] -> [Paso Alto].

Nitidez: Procesar Paso Alto con Photoshop

La imagen se pondrá en gris.

Nitidez: Procesar Paso Alto con Photoshop

Y a la derecha de la capa veremos un simbolito como de dos triángulos.

Nitidez: Procesar Paso Alto con Photoshop

Al hacer doble clic sobre el símbolo nos dejará te dejará aplicar un modo de fusión de la capa.

Nitidez: Procesar Paso Alto con Photoshop

Al aplicar el Filtro de Paso Alto, la mejor cantidad para poner en el deslizador es aproximadamente  de  4,7.
Dependiendo del modo de fusión que elijamos (Luz suave, Superponer, Luz Intensa, Luz Fuerte, Luz Lineal, Luz Focal) la foto se va enfocando más o menos, o de distinta forma.
En el caso de trabajar con distintas capas, se puede variar el Modo de Fusión (para obtener los distintos tipos de enfoque) directamente en el menú de Capas (no hace falta picar en el doble triangulito).

Nitidez: Procesar Paso Alto con Photoshop

Para cada tipo de foto conviene un modo de fusión. Todo es cuestión de ir probando (si podemos visualizamos la foto al 100%, para ver bien qué pasa cuando hacemos cada cosa).

 

Modo de fusión: SUPERPONER

Nitidez: Procesar Paso Alto con Photoshop

Modo de fusión: LUZ FUERTE

Nitidez: Procesar Paso Alto con Photoshop

Modo de fusión: LUZ SUAVE

Nitidez: Procesar Paso Alto con Photoshop

Modo de fusión: LUZ INTENSA

Nitidez: Procesar Paso Alto con Photoshop

Modo de fusión: LUZ LINEAL

Nitidez: Procesar Paso Alto con Photoshop

Modo de fusión: LUZ FOCAL

Nitidez: Procesar Paso Alto con Photoshop

 

Como hemos podido observar, el “grado” de intensidad en el enfoque sería, de menor a mayor: “Superponer”, “Luz suave”,, “Luz fuerte”, “Luz intensa”, “Luz lineal” y “Luz focal”. La opción de “Luz focal” prácticamente no le hace nada a la foto.

REDUCIR RUIDO
Al final de procesar la imagen podemos “Quitar ruido”. Se puede hacer al Acoplar las Capas y trabajar en formato TIFF, o incluso, sin acoplar las Capas, como una última Capa en formato PSD. Podemos aplicar directamente el filtro de reducción de ruido.

Vamos a la menú de [Filtro] – > [Ruido] -> {Reducir ruido].

El proceso sería el mismo, sólo que si ya lo has hecho en PSD, al pasar a TIFF o JPG.

Nitidez: Procesar Paso Alto con Photoshop

Opciones de reducción de ruido. Estos parámetros se pueden variar observando la imagen hasta obtener los resultados óptimos.

Nitidez: Procesar Paso Alto con Photoshop

Estos valores de reducción de ruido, son los establecidos por defecto, definidos en PhotoShop.
Ahora puedes probar los valores recomendados por Juanma  (además de mi amigo, es un magnífico fotógrafo  y un Gurú de San PhotoShop).

Marcar Básico y Previsualizar.

  • Intensidad: 8
  • Conservar detalles: 17%
  • Reducir ruido de color (si la foto está en color): 47%
  • Enfocar detalles: 11%
  • Quitar defecto JPEG: Desmarcado (en general, salvo que se observe mucha mejora).

Otra opción es aplicar la reducción de ruido como un filtro inteligente, de esta manera obtenemos más opciones de fusión de la imagen con reducción de ruido.

Nitidez: Procesar Paso Alto con Photoshop

Opciones de fusión con reducción de ruido.

Nitidez: Procesar Paso Alto con Photoshop

En cada caso habrá que determinar el filtro que deseamos aplicar, observando los resultados del proceso sobre la imagen.

 

 

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